Critical Thinking Two spherical beads of the same mass fall at a constant speed due to a drag force. Bead A takes twice as long to fall the same distance as bead B. (a) Which of these beads has the larger radius? (b) Based on experimental data, an equation that fits the data is suggested for radius of a bead, _r_ , which may not be correct: r = Kt - \frac{1}{2} , where _K_ is a constant with appropriate units and _t_ is the time it takes for a bead to reach a determined distance. Is this equation consistent with your answer from part a? Explain why or why not. Does this equation make sense? Explain why or why not. (c) Beads of different radii are selected and the time it takes to fall a set distance is recorded. Graph the radius of these beads as a function of the time it takes to fall a determined distance.

physics


Intersection of the cone z = \sqrt{x^{2} + y^{2}} and plane z = y - 4

mathematics


What are the three requirements that scientists believe an environment needs to supply life with in order to be considered habitable?

astronomy


mathematics


How were copyrights viewed very differently from patent rights in terms of the interests of the general public?    A. Copyrights were thought to be in less conflict with the public interest.   B. Copyrights were enforced with the same diligence as patent rights.   C. Patent rights were seen as more beneficial to the public than copyrights.

business


Write an equation for a line perpendicular to f(x) = 5x - 1 and passing through the point (5, 20).

mathematics


Two slits are separated by a distance of 3500 nm . If light with a wavelength of 500 nm passes through the slits and produces an interference pattern, the m = ________ order minimum appears at an angle of 30.0Â°.

physics


Find the exact solution for e^{2x} - e^{x} - 72 = @. If there is no solution, write _no solution_ .

mathematics


Why is the supply curve with constant unitary elasticity a straight line?

economics


The pole shown below is at a 90.0\text{°} bend in a power line and is therefore subjected to more shear force than poles in straight parts of the line. The tension in each line is 4.00\ \times \ 10^{4}\text{N}, at the angles shown. The pole is 15.0 m tall, has an 18.0 cm diameter, and can be considered to have half the strength of hardwood. (a) Calculate the compression of the pole. (b) Find how much it bends and in what direction. (c) Find the tension in a guy wire used to keep the pole straight if it is attached to the top of the pole at an angle of 30.0\text{°} with the vertical. The guy wire is in the opposite direction of the bend.

physics


Research indicates that individuals are aware of their sexual orientation _______.

sociology


Why are thermometers that are used in weather stations shielded from the sunshine? What does a thermometer measure if it is shielded from the sunshine and also if it is not?

physics


What are some of the reasons that have contributed to women making less than men in similar jobs?

business


LO6.6Review the most recent yearly (or quarterly) income statement for a publicly-traded company and answer the following questions. What company did you choose, and which income statement format do they use (multi-step, simple, or combination)?What information is included on the statement?Do you agree with the format presentation? Why or why not?What are the benefits and limitations with the income statement format choice?Compute the Gross Profit Margin Ratio. Discuss the results.

business


Research and historical experience demonstrate that, in the absence of intellectual property rights, nations are bound to face which of the following?    A. An excessive incentive to copy others.   B. An excessive incentive to invent or create for themselves.   C. An incentive to trade ideas and work freely.

business


In words, define the random variablesXandXÂ¯XÂ¯.

mathematics


Is it possible for \text{γ} to be smaller than unity?

physics


business


In mammalian adaptive immune systems, T cell receptors are extraordinarily diverse. What function of the immune system results from this diversity, and how is this diversity achieved?

biology


What are some examples of innovative products that have disrupted their industries for the better?

economics


When plotted on the blank plots, which answer choice would show the motion of an object that has uniformly accelerated from 2 m/s to 8 m/s in 3 s?

physics


Estimate the epicentral coordinates of the earth-quake

general


Which structure allows lymph from the lower right limb to enter the bloodstream?

biology


Where did the term Corporate Responsibility originate?

business


Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. (Membranes are discussed in some detail in [Nerve Conduction—Electrocardiograms](20-7-nerve-conduction- electrocardiograms) .) What is the voltage across an 8.00 nm–thick membrane if the electric field strength across it is 5.50 MV/m? You may assume a uniform electric field.

physics


Find the inverse of the carbon-dating equation. What does it mean? If there is 25% radiocarbon, how old is the skeleton?

mathematics


What is the hybridization of iodine in IF3and IF5?

chemistry


Which three electrolytes are most closely regulated by the kidney?

biology


What are the mole fractions of HNO 3 and water in a concentrated solution of nitric acid (68.0% HNO 3 by mass)? (a) Outline the steps necessary to answer the question. (b) Answer the question.

chemistry


Why is Saturnâs moon Enceladus such an exciting place to send a mission?

astronomy


A ________ is an animal species that is studied to gain understanding about biological phenomena, with the expectation that what is learned will apply broadly across other species.

psychology


(a) At what speed would a 2\text{.}{\text{00} \times \text{10}^{4}}\text{-kg} airplane have to fly to have a momentum of 1\text{.}{\text{60} \times \text{10}^{9}}{\ \text{kg} \cdot \text{m/s}} (the same as the ship’s momentum in the problem above)? (b) What is the plane’s momentum when it is taking off at a speed of \text{60.0 m/s} ? (c) If the ship is an aircraft carrier that launches these airplanes with a catapult, discuss the implications of your answer to (b) as it relates to recoil effects of the catapult on the ship.

physics


mathematics


How did the NRA seek to protect workers? What difficulties did this agency face?

history


________ is the process by which an organism's sex is determined by its chromosomes, such as the XY system in mammals, where the presence of the SRY gene on the Y chromosome triggers male development.

psychology


What is the term used to describe the most accepted style and structure of code that can be used to ensure proper software development?

computer_science


In base 8, what is the place value of the 3 in the number 6388?

mathematics


Why is ethics an important concept pertaining to revenue and expense recognition principles?

business


Which molecule typically serves as the final electron acceptor during fermentation?    A. oxygen   B. NAD+   C. pyruvate   D. CO2

biology


Find the circumference of a circle with radius 3.2 cm.

mathematics


Describe two different collisionsâone in which angular momentum is conserved, and the other in which it is not. Which condition determines whether or not angular momentum is conserved in a collision?

physics


Nitrosyl chloride, NOCl, decomposes to NO and Cl 2 .   \text{2NOCl(}g)\ \longrightarrow\ \text{2NO(}g) + \text{Cl}_{2}(g) Determine the rate law, the rate constant, and the overall order for this reaction from the following data:  [NOCl] (_M_) | 0.10 | 0.20 | 0.30   ---|---|---|---   Rate (mol L−1 h−1) | 8.0 ×× 10−10 | 3.2 ×× 10−9 | 7.2 ×× 10−9

chemistry


Calculate the concentration of each species present in a 0.010- _M_ solution of phthalic acid, C 6 H 4 (CO 2 H) 2 .   \begin{array}{l} \\\ \\\ {\text{C}_{6}\text{H}_{4}\left( \text{CO}_{2}\text{H} \right)_{2}(aq) + \text{H}_{2}\text{O}(l)\rightleftharpoons\text{H}_{3}\text{O}^{\text{+}}(aq) + \text{C}_{6}\text{H}_{4}\left( \text{CO}_{2}\text{H} \right)\ \left( \text{CO}_{2} \right)^{\text{−}}(aq)\mspace{72mu} K_{\text{a}} = 1.1\ \times \ 10^{-3}} \\\ {\text{C}_{6}\text{H}_{4}\left( \text{CO}_{2}\text{H} \right)\left( \text{CO}_{2} \right)\ (aq) + \text{H}_{2}\text{O}(l)\rightleftharpoons\text{H}_{3}\text{O}^{\text{+}}(aq) + \text{C}_{6}\text{H}_{4}\left( \text{CO}_{2} \right)_{2}{}^{2-}(aq)\mspace{90mu} K_{\text{a}} = 3.9\ \times \ 10^{-6}} \end{array}

chemistry


Imagine an economy in which Ricardian equivalence holds. This economy has a budget deficit of 50, a trade deficit of 20, private savings of 130, and investment of 100. If the budget deficit rises to 70, how are the other terms in the national saving and investment identity affected?

economics


Determine the winner of the election by the Borda method.

mathematics


Do physical characteristics matter when voters assess candidates? If so, how?

political_science


The scope of a gap analysis for data security and privacy usually includes evaluating ________.

computer_science


Based on their positions in the periodic table, predict which has the smallest first ionization energy: Li, Cs, N, F, I.

chemistry


Consulting the modern phylogenetic tree of animals, which of the following would not constitute a clade?

biology


LO12.1What combination of quantitative factors and qualitative factors would you like your potential employer to use as a performance management system? Explain your answer.

business


Why might residents of countries with low socioeconomic status and a large population of older adults have negative views of aging?

psychology


Find the values ofaasuch that vectorsâ©2,4,aâªâ©2,4,aâªandâ©0,â1,aâªâ©0,â1,aâªare orthogonal.

mathematics


A 1.80-kg falcon catches a 0.650-kg dove from behind in midair. What is their velocity after impact if the falcon’s velocity is initially 28.0 m/s and the dove’s velocity is 7.00 m/s in the same direction?

physics


What is the definition of data governance?

computer_science


The following nuclei do not lie in the band of stability. How would they be expected to decay? (a)1528P1528P (b)92235U92235U (c)2037Ca2037Ca (d)39Li39Li (e)96245Cm96245Cm

chemistry


Which food preparation technique should the nurse advise a client to use to prevent loss of water-soluble vitamins from the food?

nursing


business


Construct the price index for a âfruit basketâ in each year using 2003 as the base year.

economics


Analysis of a compound indicates that it contains 77.55% Xe and 22.45% F by mass. (a) What is the empirical formula for this compound? _(Assume this is also the molecular formula in responding to the remaining parts of this exercise)_ . (b) Write a Lewis structure for the compound. (c) Predict the shape of the molecules of the compound. (d) What hybridization is consistent with the shape you predicted?

chemistry


The common law concept that requires an employee to render loyal and faithful service to the employer is ________. the duty of confidentialitya non-compete agreementthe duty of loyaltytrade secret protection

business


mathematics


LO8.5What causes an unfavorable variance?

business


Microeconomic theory argues that it is economically rationale (and profitable) to sell additional output as long as the price covers the variable costs of production. How is this relevant to the determination of whether dumping has occurred?

economics


Propane, C3H8, is a hydrocarbon that is commonly used as a fuel. (a) Write a balanced equation for the complete combustion of propane gas. (b) Calculate the volume of air at 25 Â°C and 1.00 atmosphere that is needed to completely combust 25.0 grams of propane. Assume that air is 21.0 percent O2by volume. (Hint: We will see how to do this calculation in a later chapter on gasesâfor now use the information that 1.00 L of air at 25 Â°C and 1.00 atm contains 0.275 g of O2.) (c) The heat of combustion of propane is â2,219.2 kJ/mol. Calculate the heat of formation,ÎHfÂ°ÎHfÂ°of propane given thatÎHfÂ°ÎHfÂ°of H2O(l) = â285.8 kJ/mol andÎHfÂ°ÎHfÂ°of CO2(g) = â393.5 kJ/mol. (d) Assuming that all of the heat released in burning 25.0 grams of propane is transferred to 4.00 kilograms of water, calculate the increase in temperature of the water.

chemistry


Perform the following calculations involving concentrations of iodate ions: (a) The iodate ion concentration of a saturated solution of La(IO 3 ) 3 was found to be 3.1 \times 10 –3 mol/L. Find the _K_ sp . (b) Find the concentration of iodate ions in a saturated solution of Cu(IO 3 ) 2 ( _K_ sp = 7.4 \times 10 –8 ).

chemistry


Which of the following changes in the financial market will lead to an increase in the quantity of loans made and received:

economics


(a) A defibrillator sends a 6.00-A current through the chest of a patient by applying a 10,000-V potential as in the figure below. What is the resistance of the path? (b) The defibrillator paddles make contact with the patient through a conducting gel that greatly reduces the path resistance. Discuss the difficulties that would ensue if a larger voltage were used to produce the same current through the patient, but with the path having perhaps 50 times the resistance. (Hint: The current must be about the same, so a higher voltage would imply greater power. Use this equation for power: {P = I^{2}}R .) Figure 20.34 The capacitor in a defibrillation unit drives a current through the heart of a patient.

physics


What dimensional/proportional changes are typically seen in a female as she goes through adolescence?

psychology


Explain what happens to the standard deviation of returns of a portfolio as the number of stocks in the portfolio increases.

business


The talus bone of the foot receives the weight of the body from the tibia. The talus bone then distributes this weight toward the ground in two directions: one-half of the body weight is passed in a posterior direction and one-half of the weight is passed in an anterior direction. Describe the arrangement of the tarsal and metatarsal bones that are involved in both the posterior and anterior distribution of body weight.

biology


physics


When a monochromatic light of wavelength 430 nm incident on a double slit of slit separation 5\ \mu\text{m} , there are 11 interference fringes in its central maximum. How many interference fringes will be in the central maximum of a light of the same wavelength and slit widths, but a new slit separation of 4\ \mu\text{m} ?

physics


Identify two common observations indicating some liquids have sufficient vapor pressures to noticeably evaporate?

chemistry


Which of the following is true about trademark remedies?    A. Damages can be significantly increased if trademark infringement is deemed willful.   B. Courts frequently use injunctions based on trademark law to stop the importation of products that once carried infringing marks even after those marks have been removed.   C. Federal trademark law also provides for punitive damages for trademark infringement.

business


Oxygen reaches the veinless cornea of the eye by diffusing through its tear layer, which is 0.500-mm thick. How long does it take the average oxygen molecule to do this?

physics


What reagent might be used to separate the ions in each of the following mixtures, which are 0.1 _M_ with respect to each ion? In some cases it may be necessary to control the pH. (Hint: Consider the _K_ sp values given in [Appendix J](j-solubility-products) .) (a) \text{Hg}_{2}{}^{\text{2+}} and Cu 2+ (b) \text{SO}_{4}{}^{\text{2−}} and Cl – (c) Hg 2+ and Co 2+ (d) Zn 2+ and Sr 2+ (e) Ba 2+ and Mg 2+ (f) \text{CO}_{3}{}^{\text{2−}} and OH –

chemistry


[LO 7.2](7-2-describe-and-explain-the-purpose-of-special-journals-and-their- importance-to-stakeholders) Received a check for $72 from a customer, Mr. White. Mr. White owed you $¼. Which journal would the company use to record this transaction?    A. sales journal   B. purchases journal   C. cash receipts journal   D. cash disbursements journal   E. general journal

business


Write the electron configurations for each of the following elements and its 3+ ions: (a) La (b) Sm (c) Lu

chemistry


EPSPs and IPSPs are generated by ________ -gated ion channels.

psychology


The accompanying figure shows a current loop consisting of two concentric circular arcs and two perpendicular radial lines. Determine the magnetic field at point P.

physics


Which person or group was most responsible for the passage of the Fourteenth Amendment? President Johnsonnorthern voterssouthern votersRadical Republicans in Congress

history


Components of some computers communicate with each other through optical fibers having an index of refraction n = 1.w. What time in nanoseconds is required for a signal to travel 0.200 m through such a fiber?

physics


Does the shaded region represent a low or a highp-value compared to a level of significance of 1%? Figure9.18

mathematics


The charge per unit length on the thin rod shown below is \lambda . What is the electric field at the point _P_ ? ( _Hint_ : Solve this problem by first considering the electric field d\mathbf{\overset{\rightarrow}{\text{E}}} at _P_ due to a small segment _dx_ of the rod, which contains charge dq = \lambda dx . Then find the net field by integrating d\mathbf{\overset{\rightarrow}{\text{E}}} over the length of the rod.)

physics


The bony openings of the skull include the ________.

biology


The slow accumulation of genetic changes to an influenza virus over time is referred to as _______.

biology


Which postulate of Daltonâs theory is consistent with the following observation concerning the weights of reactants and products? When 100 grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced.

chemistry


Calculate the torque about the _z_ -axis that is out of the page at the origin in the following figure, given that F_{1} = 3\ \text{N},\mspace{9mu} F_{2} = 2\ \text{N},\mspace{9mu} F_{3} = 3\ \text{N},\mspace{9mu} F_{4} = 1.8\ \text{N} .

physics


Find the radius of a star’s image on the retina of an eye if its pupil is open to 0.65 cm and the distance from the pupil to the retina is 2.8 cm. Assume \text{λ} = 550\ \text{nm} .

physics


How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N? Express your answer in joules and kilocalories.

physics


Justify the title To Kill a Mockingbird .

general


What is the thickest interior layer of Earth? The thinnest?

astronomy


mathematics


(a) Two microwave frequencies are authorized for use in microwave ovens: 900 and 2560 MHz. Calculate the wavelength of each. (b) Which frequency would produce smaller hot spots in foods due to interference effects?

physics


Which of the following states had the most democratic constitution in the 1780s? PennsylvaniaMassachusettsSouth CarolinaMaryland

history


In which type of election are you most likely to see coattail effects?    A. presidential   B. midterm   C. special   D. caucuses

political_science


When 2.50 g of methane burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of combustion per mole of methane under these conditions?

chemistry


How is scientific progress similar to Darwinian evolution according to Kuhn

general


[LO 11.2](11-2-analyze-and-classify-capitalized-costs-versus-expenses) Describe the relationship between expense recognition and long-term assets.

business


The Supreme Court decision ruling that “separate but equal” was constitutional and allowed racial segregation to take place was ________.    A. _Brown v. Board of Education_   B. _Plessy v. Ferguson_   C. _Loving v. Virginia_   D. _Shelley v. Kraemer_

political_science


Will the same ship float higher in salt water than in freshwater? Explain your answer.

physics


Koilocytes are characteristic of    A. cells infected with human papillomavirus   B. cells infected with herpes simplex virus 2   C. cells infected with all forms of herpesviruses   D. cervical cancer cells

biology


What is the primary difference between divergent thinking and brainstorming?

business


How did Chinese newspapers differ from US

general


The Tenth Amendment created a class of powers exclusive to state governments. These powers are referred to as ________. enumerated powersimplied powersreserved powersnone of the above

political_science


biology


Explain in one sentence what the method incFromN does

general


How can genomics be used to predict disease risk and treatment options?

biology


Calculate the reactance of a 5.0\text{-}\mu\text{F} capacitor at (a) 60 Hz, (b) 600 Hz, and (c) 6000 Hz.

physics


As a school counselor, you have received concerns from a parent about their 15-year-old son, Ricky, who is engaging in risk-taking behavior, such as performing dangerous stunts on his skateboard, especially when other teens are watching and recording his actions. The parent wants to know if this behavior is ânormalâ for his age or if they should be concerned. Write a response that explains the typical brain development during adolescence and how it influences risk-taking behavior. Provide guidance on how the parent can approach this situation.

psychology


What did Barack Obama do to make college education more accessible?

history


Which of the following is the type of DNA repair in which thymine dimers are directly broken down by the enzyme photolyase?    A. direct repair   B. nucleotide excision repair   C. mismatch repair   D. proofreading

biology


MHC II molecules present    A. processed self-antigens from proteasomes.   B. processed foreign antigens from phagolysosomes.   C. antibodies.   D. T cell receptors.

biology


Which location on the body has the largest region of somatosensory cortex representing it, according to the sensory homunculus?

biology


In what year will the percentage drop below 4%?

mathematics


A supernova remnant was recently discovered and found to be approximately 150 years old. Provide possible reasons that this supernova explosion escaped detection.

astronomy


True or falseâA boy pushed a box with a weight of 300 N up a ramp. He said that, because the ramp was 1.0 m high and 3.0 m long, he must have been pushing with force of exactly 100 N.

physics


Why can we neglect forces such as those holding a body together when we apply Newtonâs second law of motion?

physics


Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed.2NaN3(s)â¶2Na(s)+3N2(g)2NaN3(s)â¶2Na(s)+3N2(g)What mass of sodium azide is required to produce 2.6 ft3(73.6 L) of nitrogen gas with a density of 1.25 g/L?

chemistry


Chief executives often have an informal group of advisors. Collectively, this group is often referred to as ________.

political_science


A car drives along a freeway, accelerating according toa=5sin(Ït),a=5sin(Ït),wherettrepresents time in minutes. Find the velocity at any timet,t,assuming the car starts with an initial speed of6060mph.

mathematics


True or falseâThe characteristics of an electric field make it analogous to the gravitational field near the surface of Earth.

physics


Show that if the uncertainty in the position of a particle is on the order of its de Broglie’s wavelength, then the uncertainty in its momentum is on the order of the value of its momentum.

physics


Is it more likely thedfis 90, 20, or two in the graph? Figure11.10

business


Determine the mass of each of the following: (a) 0.0146 mol KOH (b) 10.2 mol ethane, C 2 H 6 (c) 1.6 \times 10 −3 mol Na 2 SO 4 (d) 6.854 \times 10 3 mol glucose, C 6 H 12 O 6 (e) 2.86 mol Co(NH 3 ) 6 Cl 3

chemistry


What delivery location allows for a more familiar birthing environment but is typically only recommended for low-risk pregnancies?

psychology


What force or forces exist between a proton and a second proton?

physics


An electron moving along the + _x_ -axis at 5.0\ \times \ 10^{6}\text{m/s} enters a magnetic field that makes a 75^{\text{o}} angle with the _x_ -axis of magnitude 0.20 T. Calculate the (a) pitch and (b) radius of the trajectory.

physics


Which of the following refers to the uptake of naked DNA from the surrounding environment?    A. conjugation   B. generalized transduction   C. specialized transduction   D. transformation

biology


Which best describes a branch point in a phylogenetic tree?

biology


What is the main disadvantage of a provisional patent application?    A. It reserves an early filing date for a later, nonprovisional application.   B. The claims in a later, nonprovisional application must be completely consistent with the early description contained in the provisional application.   C. The provisional patent only contains the specifications, and drawings, if any.   D. All of the above.

business


X~N(â3, 4) Find the probability thatxis between one and four.

mathematics


For what type of electromagnetic radiation would a grating with spacing greater than 800 nm be useful as a spectroscopic tool?

physics


The approximate minimum daily dietary requirement of the amino acid leucine, C6H13NO2, is 1.1 g. What is this requirement in moles?

chemistry


Why did “Cellophane” and “Aspirin” lose their trademarks    A. The original companies making these products went out of business.   B. The public came to associate the name with an entire category of similar products.

business


Which embryonic brain region becomes the cerebral hemispheres?

psychology


Refer to Question 3 above. Solve using the financial calculator, documenting your steps/keystrokes.

business


Determine the common difference of the following sequence: {19, 13, 7, 1, -5, â¦}.

mathematics


The model for building ________ also includes steps for team building, suggesting that the most complex developments require more than the lone mad scientist in a lab, despite what is often depicted in popular culture. creativity in an individualinnovationsinventions

business


Yields in organic reactions are sometimes low. What is the percent yield of a process that produces 13.0 g of ethyl acetate from 10.0 g of CH3CO2H?

chemistry


Suppose a child is riding on a merry-go-round at a distance about halfway between its center and edge. She has a lunch box resting on wax paper, so that there is very little friction between it and the merry-go-round. (a) Which path shown below, as viewed from the ground, will the lunch box take when she lets go? (b) The lunch box leaves a trail in the dust on the merry-go-round. What is the shape of the dust trail? Explain your answers.

physics


What is one complication resulting from presbyopia?

psychology


When jogging at 13 km/h on a level surface, a 70-kg man uses energy at a rate of approximately 850 W. Using the facts that the “human engine” is approximately 25% efficient, determine the rate at which this man uses energy when jogging up a 5.0\text{°} slope at this same speed. Assume that the frictional retarding force is the same in both cases.

physics


mathematics


Which of the following is an example of episodic framing?    A. a story on drug abuse that interviews addicts and discusses reasons for addiction and government responses to help addicts   B. a story on how drug abuse policy has changed since 1984   C. a story on candidates’ answers to a drug question in a debate   D. a story detailing arguments against needle exchange programs

political_science


general


True or false? The percentage of income earned by the top 1 percent of households in the United States has more than doubled since the early 1980s.

business


FindAâ+Bâfor the following vectors:Aâ=(122cm,â145â)Bâ=(110cm,â270â)

physics


Show that the self-inductance per unit length of an infinite, straight, thin wire is infinite.

physics


What events led to the end of the Cold War? What impact did the end of the Cold War have on American politics and foreign policy concerns?

history


biology


Only women are affected by gender stratification.    A. True   B. False

sociology


Which of the following diets can be beneficial for people living with chronic illness and nutritional anemia?

nursing


What is the combination of an electrical gradient and a concentration gradient called?

biology


Lasers are used to burn and read CDs. Explain why a laser that emits blue light would be capable of burning and reading more information than one that emits infrared.

physics


What is producer surplus? How is it illustrated on a demand and supply diagram?

economics


State which of the following species are amphiprotic and write chemical equations illustrating the amphiprotic character of these species. (a)NH3NH3 (b)HPO42âHPO42â (c) Brâ (d)NH4+NH4+ (e)AsO43âAsO43â

chemistry


The judicial system or judicial branch is __________.

political_science


Why is solar power considered an emerging technology?

computer_science


Sometimes equilibria for complex ions are described in terms of dissociation constants,Kd. For the complex ionAlF63âAlF63âthe dissociation reaction is: AlF63ââAl3++6FâAlF63ââAl3++6FâandKd=[Al3+][Fâ]6[AlF63â]=2Ã10â24Kd=[Al3+][Fâ]6[AlF63â]=2Ã10â24 Calculate the value of the formation constant,Kf, forAlF63â.AlF63â.

chemistry


The land plants are probably descendants of which of these groups?

biology


When might a visual search process be effortless and quick?

psychology


(a) Why does an ordinary rifle recoil (kick backward) when fired? (b) The barrel of a recoilless rifle is open at both ends. Describe how Newton’s third law applies when one is fired. (c) Can you safely stand close behind one when it is fired?

physics


mathematics


One way to calculate the size and shape of the Galaxy is to estimate the distances to faint stars just from their observed apparent brightnesses and to note the distance at which stars are no longer observable. The first astronomers to try this experiment did not know that starlight is dimmed by interstellar dust. Their estimates of the size of the Galaxy were much too small. Explain why.

astronomy


All patentable inventions fall into two broad categories—they are products or processes. Which category do the following fall into?    A. A machine.   B. A means to an end.   C. A composition of matter.   D. A manufacture.

business


sociology


An insulated vessel contains 1.5 moles of argon at 2 atm. The gas initially occupies a volume of 5 L. As a result of the adiabatic expansion the pressure of the gas is reduced to 1 atm. (a) Find the volume and temperature of the final state. (b) Find the temperature of the gas in the initial state. (c) Find the work done by the gas in the process. (d) Find the change in the internal energy of the gas in the process.

physics


What is the half-life for the decomposition of O3when the concentration of O3is 2.35ÃÃ10â6M? The rate constant for this second-order reaction is 50.4 L molâ1hâ1.

chemistry


One of the first and most important targets for drugs to fight infection with HIV (a retrovirus) is the reverse transcriptase enzyme. Why?

biology


What was the importance of the Louisiana Purchase?    A. It gave the United States control of the port of New Orleans for trade.   B. It opened up the possibility of quick trade routes to Asia.   C. It gave the United States political leverage against the Spanish.   D. It provided Napoleon with an impetus to restore France’s empire.

history


The social security tax is 6.2% on employees’ income earned below $113,@. Is this tax progressive, regressive or proportional?

economics


What group has reported the highest rate of experiencing sexual violence?

psychology


A 1000 -liter tank contains pure water and a solution of 0.2 kg salt/L is pumped into the tank at a rate of 1 L/min and is drained at the same rate. Solve for total amount of salt in the tank at time t.

mathematics


Describe the process of Southern blotting.

biology


LO11.1What is the difference between a patent and a copyright?

business


What is they-intercept? Interpret its meaning.

mathematics


What is the physical unit of a wave function, \text{Ψ}(x,t)? What is the physical unit of the square of this wave function?

physics


(a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp = 746 W) to reach a speed of 15.0 m/s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m-high hill in the process?

physics


What type of number would we need to represent the amount of money in a bank account?

computer_science


mathematics


Derive a kinetic model from experimental data.

general


Use scientific (exponential) notation to express the following quantities in terms of the SI base units in [Table 1.2](1-4-measurements) :(a) 0.13 g (b) 232 Gg (c) 5.23 pm (d) 86.3 mg (e) 37.6 cm (f) 54 μm (g) 1 Ts (h) 27 ps (i) 0.15 mK

chemistry


A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves?

physics


What are isotopes? Why do different isotopes of the same element have similar chemistries?

physics


A drug is called an agonist if it ________.

biology


(a) A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.640 T field. How many turns are in the coil? (b) Is this number of turns of wire practical for a 1.00 by 3.00 cm coil?

physics


Draw a diagram and use RHR-1 to show that the forces on the top and bottom segments of the motorâs current loop inFigure 22.33are vertical and produce no torque about the axis of rotation.

physics


A charge distribution has electric field lines pointing into it. What sign is the net charge?

physics


Isotopes such as26Al (half-life: 7.2ÃÃ105years) are believed to have been present in our solar system as it formed, but have since decayed and are now called extinct nuclides. (a)26Al decays by Î²+emission or electron capture. Write the equations for these two nuclear transformations. (b) The earth was formed about 4.7ÃÃ109(4.7 billion) years ago. How old was the earth when 99.999999% of the26Al originally present had decayed?

chemistry


What is one way to distinguish between psychology and sociology?

sociology


Show by suitable net ionic equations that each of the following species can act as a Brønsted-Lowry acid: (a) \text{H}_{3}\text{O}^{\text{+}} (b) HCl (c) NH 3 (d) CH 3 CO 2 H (e) \text{NH}_{4}{}^{\text{+}} (f) \text{HSO}_{4}{}^{\text{−}}

chemistry


political_science


Must a complex system be adaptive to be of interest in the field of complexity? Give an example to support your answer.

physics


What is the probability of rolling an even number of dots with a fair, six-sided die numbered one through six?

mathematics


Given the function, R(x) = \frac{x - 5}{x - 2}, find the values of x that make the function greater than or equal to 0.

mathematics


Could the Milky Way ever become an active galaxy? Is it likely to ever be as luminous as a quasar?

astronomy


mathematics


computer_science


Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm by the left ventricle of the heart. (a) Make a sketch of the situation. (b) List the knowns in this problem. (c) How long does the acceleration take? To solve this part, first identify the unknown, then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking your units. (d) Is the answer reasonable when compared with the time for a heartbeat?

physics


business


The sum of two number is w. One number is 11 less than the other. Find the numbers.

mathematics


Explore the relationship between socioeconomic status (SES) and physical development during middle childhood. How does SES influence children's health outcomes, and what measures can be taken to reduce health disparities?

psychology


Give several reasons the Orion molecular cloud is such a useful âlaboratoryâ for studying the stages of star formation.

astronomy


How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.

chemistry


Is the event horizon of a black hole the actual physical surface of the object?

physics


What type of attack manipulates the Domain Name System (DNS) to redirect a websiteâs traffic to a different IP address?

computer_science


Rank the compounds in each of the following groups in order of increasing acidity or basicity, as indicated, and explain the order you assign. (a) acidity: NaHSO 3 , NaHSeO 3 , NaHSO 4 (b) basicity: \text{BrO}_{2}{}{}^{\text{−}}, \text{ClO}_{2}{}{}^{\text{−}}, \text{IO}_{2}{}{}^{\text{−}} (c) acidity: HOCl, HOBr, HOI (d) acidity: HOCl, HOClO, HOClO 2 , HOClO 3 (e) basicity: \text{NH}_{2}{}{}^{\text{−}}, HS − , HTe − , \text{PH}_{2}{}{}^{\text{−}} (f) basicity: BrO − , \text{BrO}_{2}{}{}^{\text{−}}, \text{BrO}_{3}{}{}^{\text{−}}, \text{BrO}_{4}{}{}^{\text{−}}

chemistry


In the equationQ=QhâQc, what does the negative sign indicate?

physics


In addition to an atmosphere dominated by nitrogen, how else is Saturnâs moon Titan similar to Earth?

astronomy


What is the average rate of return for the values that follow? 0.90, 1.1, 1.2

business


At what wind speed does {- \text{10º}}\text{C} air cause the same chill factor as still air at {- \text{29º}}\text{C} ?

physics


The nurse is teaching a group of nursing students about the importance of interprofessional (IP) collaboration. What is an advantage of IP teamwork?

nursing


Does wisdom increase with age? Why or why not?

psychology


A successful telecommuting program would include which of the following? a written policy that spells out expectationsan oral policy the manager can change at willsubjective criteria for each individual workerpreference for some people to telecommute over others

business


chemistry


general


A car rental company offers two plans for renting a car. Plan A: 25 dollars per day and 10 cents per mile Plan B: 50 dollars per day with free unlimited mileage How many miles would you need to drive for plan B to save you money?

mathematics


When the 20.0 A current through an inductor is turned off in 1.50 ms, an 800 V emf is induced, opposing the change. What is the value of the self-inductance?

physics


Identify the correct definition of osmosis.

general


LO3.5Explain normal balances. Give three examples of accounts that will normally have a debit balance and three accounts that will normally have a credit balance.

business


[LO 8.4](8-4-compute-and-evaluate-overhead-variances) What causes the variable overhead efficiency variance?

business


Winston deposited $3,294 in a bank account with interest rate 2.6%. How much interest was earned in 5 years?

mathematics


What are examples of individual economic agents?

economics


The Sun orbits the Milky Way galaxy once each 2.60\ \times \ 10^{8}\ \text{years} , with a roughly circular orbit averaging a radius of 3.00\ \times \ 10^{4} light-years. (A light-year is the distance traveled by light in 1 year.) Calculate the centripetal acceleration of the Sun in its galactic orbit. Does your result support the contention that a nearly inertial frame of reference can be located at the Sun? (b) Calculate the average speed of the Sun in its galactic orbit. Does the answer surprise you?

physics


Shown in the following figure is a long, straight wire and a single-turn rectangular loop, both of which lie in the plane of the page. The wire is parallel to the long sides of the loop and is 0.50 m away from the closer side. At an instant when the emf induced in the loop is 2.0 V, what is the time rate of change of the current in the wire?

physics


LO5.1What are the four entries required for closing, assuming that the Income Summary account is used?

business


Phospholipids are important components of ________.

biology


Consider the uniform electric field \mathbf{\overset{\rightarrow}{\text{E}}} = (4.0\ \mathbf{\hat{\text{j}}} + 3.0\ \mathbf{\hat{\text{k}}})\ \times \ 10^{3}\ \text{N/C}\text{.} What is its electric flux through a circular area of radius 2.0 m that lies in the _xy_ -plane?

physics


Observers at a safe distance from an atmospheric test of a nuclear bomb feel its heat but receive none of its copious x rays. Why is air opaque to x rays but transparent to infrared?

physics


What are some known teratogens, and what kind of damage can they do to the developing fetus?

psychology


Write cell schematics for the following cell reactions, using platinum as an inert electrode as needed. (a) \text{Mg}(s) + \text{Ni}^{2+}(aq)\ \longrightarrow\ \text{Mg}^{2+}(aq) + \text{Ni}(s) (b) 2\text{Ag}^{\text{+}}(aq) + \text{Cu}(s)\ \longrightarrow\ \text{Cu}^{2+}(aq) + \text{2Ag}(s) (c) \text{Mn}(s) + \text{Sn(NO}_{3})_{2}(aq)\ \longrightarrow\ \text{Mn(NO}_{3})_{2}(aq) + \text{Sn}(s) (d) 3\text{CuNO}_{3}(aq) + \text{Au(NO}_{3})_{3}(aq)\ \longrightarrow\ \text{3Cu(NO}_{3})_{2}(aq) + \text{Au}(s)

chemistry


Does it make sense that wages would be sticky downwards but not upwards? Why or why not?

economics


Which of the following didnotcharacterize political changes in the 1830s? higher voter participationincreasing political power of free Black votersstronger partisan tiespolitical battles between Whigs and Democrats

history


The _____ gives the federal government the authority to regulate interstate and international commerce.

business


What do international flows of capital have to do with trade imbalances?

economics


Which of the following correctly matches the pattern in our perception of color as we move from short wavelengths to long wavelengths?

psychology


LO9.2Lavell started out mowing lawns in the neighborhood when he was 13 years old. He did such good work that, without advertising, his business grew steadily each year. After college, Lavell decided to continue the business as a full-time career. One of his concerns, however, is the number of hours he is putting in. Once school lets out, he finds himself working long hours nearly every day of the week. Although he has added workers, his business now handles mowing, trimming, and landscaping for residential, corporate, and nonprofit clients. He is considering adding managers but is not quite sure how to structure the organization. Lavell wants to focus on building the business rather than doing the daily work, so he knows a decentralized structure will be best. He has asked you to develop a potential organizational chart to help him envision the best way to organize the business. Describe the advantages to this approach as well as any concerns he should have.

business


Write a set of quantum numbers for each of the electrons with annof 3 in a Sc atom.

chemistry


When particles scattering light are much smaller than its wavelength, the amount of scattering is proportional to1/Î»41/Î»4. Does this mean there is more scattering for smallÎ»Î»than largeÎ»Î»? How does this relate to the fact that the sky is blue?

physics


The health care provider ordered levothyroxine 0.275 mg once daily for a client with hypothyroidism. Levothyroxine is available as a 137 mcg tablet. How many tablets will the nurse administer to the client?

nursing


mathematics


Compare and contrast the role of estrogens and progesterone.

biology


A nurse is teaching a client with newly diagnosed hyperthyroidism. For which medication should the nurse provide client education?

nursing


Which hypothalamic hormone contributes to the regulation of the male reproductive system?

biology


Calculate the molarity of each of the following solutions: (a) 0.195 g of cholesterol, C27H46O, in 0.100 L of serum, the average concentration of cholesterol in human serum (b) 4.25 g of NH3in 0.500 L of solution, the concentration of NH3in household ammonia (c) 1.49 kg of isopropyl alcohol, C3H7OH, in 2.50 L of solution, the concentration of isopropyl alcohol in rubbing alcohol (d) 0.029 g of I2in 0.100 L of solution, the solubility of I2in water at 20 Â°C

chemistry


Conduct sociological research. Google yourself. How much information about you is available to the public? How many and what types of companies offer private information about you for a fee? Compile the data and statistics you find. Write a paragraph or two about the social issues and behaviors you notice.

sociology


What actions can the entrepreneur take to avoid these biases?

business


general


Would the sample size be large enough if the population is school-aged children and young adults in the United States?

mathematics


Explain what the mass-to-light ratio is and why it is smaller in spiral galaxies with regions of star formation than in elliptical galaxies.

astronomy


About what percent ofxvalues lie between the mean and one standard deviation?

mathematics


Explain what a negativez-score, a positivez-score, and az-score of zero imply.

business


Why do scientists believe that the strong nuclear force and the electroweak force will combine under high energies?

physics


If a person earns $2700 gross on a paycheck, how much is taken out in FICA taxes?

mathematics


The relationships between which variables are described by the kinematics of rotational motion?

physics


The molecular mass of butanol, C4H9OH, is 74.14; that of ethylene glycol, CH2(OH)CH2OH, is 62.08, yet their boiling points are 117.2 Â°C and 174 Â°C, respectively. Explain the reason for the difference.

chemistry


Which medication could be prescribed to treat hyperkalemia?

nursing


Released acetylcholine is inactivated by ________; available choline is ________ while acetate is ________.

psychology


A friend tells you that the 2 _s_ orbital for fluorine starts off at a much lower energy than the 2 _s_ orbital for lithium, so the resulting σ 2 _s_ molecular orbital in F 2 is more stable than in Li 2 . Do you agree?

chemistry


Calculate the mole fraction of each solute and solvent: (a) 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg of waterâa saturated solution at 0 Â°C (b) 125 g of NH4NO3in 275 g of waterâa mixture used to make an instant ice pack (c) 25 g of Cl2in 125 g of dichloromethane, CH2Cl2 (d) 0.372 g of tetrahydropyridine, C5H9N, in 125 g of chloroform, CHCl3

chemistry


Again usingAppendix F, which planet(s) might you expect not to have significant seasonal activity? Why?

astronomy


Currently, ________ states have term limits in place. fivetenfifteentwenty

political_science


A string on the violin has a length of 23.00 cm and a mass of 0.900 grams. The tension in the string 850.00 N. The temperature in the room is T_{C} = 24.00\text{°}\text{C}\text{.} The string is plucked and oscillates in the n = 9 mode. (a) What is the speed of the wave on the string? (b) What is the wavelength of the sounding wave produced? (c) What is the frequency of the oscillating string? (d) What is the frequency of the sound produced? (e) What is the wavelength of the sound produced?

physics


The reaction of WCl6with Al at ~400 Â°C gives black crystals of a compound containing only tungsten and chlorine. A sample of this compound, when reduced with hydrogen, gives 0.2232 g of tungsten metal and hydrogen chloride, which is absorbed in water. Titration of the hydrochloric acid thus produced requires 46.2 mL of 0.1051MNaOH to reach the end point. What is the empirical formula of the black tungsten chloride?

chemistry


One component of the general definition of intelligence is an individual's ability to

psychology


Which of the following is true for the displacement of an object?

physics


A friend who has not had the benefit of an astronomy course suggests that the Sun must be full of burning coal to shine as brightly as it does. List as many arguments as you can against this hypothesis.

astronomy


What event is thought to have contributed to the evolution of eukaryotes?

biology


What are the two major exceptions to the Electronic Communications Privacy Act that weaken its protections of employee privacy rights?

business


How does killingAnophelesmosquitoes affect thePlasmodiumprotists?

biology


What is the oneâs complement of the binary number 10100010?

computer_science


Which of the following was _not_ one of the effects of the cotton boom?    A. U.S. trade increased with France and Spain.   B. Northern manufacturing expanded.   C. The need for slave labor grew.   D. Port cities like New Orleans expanded.

history


Briefly explain the differences between TANF, the earned income tax credit, SNAP, and Medicaid.

economics


LO4.4How is the predetermined overhead rate applied?

business


Sketch a graph of the linear function f(t) = 2t - 5 .

mathematics


MHC I molecules present    A. processed self-antigens from proteasomes.   B. processed foreign antigens from phagolysosome.   C. antibodies.   D. T cell antigens.

biology


business


The length of a diagonal of a rectangle is three more than the width. The length of the rectangle is three times the width. Find the length of the diagonal. (Round to the nearest tenth.)

mathematics


Consider two approaches to reducing emissions of CO 2 into the environment from manufacturing industries in the United States. In the first approach, the U.S. government makes it a policy to use only predetermined technologies. In the second approach, the U.S. government determines which technologies are cleaner and subsidizes their use. Of the two approaches, which is the command- and-control policy?

economics


Discuss the concept of Type A behavior pattern, its history, and what we now know concerning its role in heart disease.

psychology


Given America’s more utilitarian focus in publishing, what was the emphasis placed in the drafting of our first copyright laws?    A. To guarantee the rights of authors.   B. To guarantee the rights of publishers and printers.   C. To ensure widespread public access to knowledge and information.

business


Laws protecting animal rights in cosmetic testing are ________. more advanced in the United States than in the European Unionmore advanced in the European Union than in the United Statesmore advanced in Asia than in the United Statesmore advanced in Asia than in the European Union

business


Construct the price index for a “fruit basket” in each year using 2003 as the base year.

economics


Describe how aphids acquired the ability to change color.

biology


Explain how electrons use light energy to move among energy levels within an atom.

astronomy


mathematics


Devise plans to market or make artwork more valuable.

general


A political scientist studying how reelection campaigns affect presidential decision-making would be using what level of analysis?

political_science


Which adult structure(s) arises from the diencephalon?

biology


Compose an original work which incorporates five common materials in sculpture.

general


Explain why long-distance electrical power lines are designed to carry very high voltages.

physics


Thanks to retailers and wholesalers and their strategies, products may be distributed in various ways. What are two examples of consumer products that are sold by retailers, and what is the corresponding distribution strategy?

business


Vasodilation of blood vessels to the kidneys is due to ________.

biology


A high school track coach has just purchased a new stopwatch that has an uncertainty of Â±0.05 s . Runners on the team regularly clock 100-m sprints in 12.49 s to 15.01 s . At the schoolâs last track meet, the first-place sprinter came in at 12.04 s and the second-place sprinter came in at 12.07 s . Will the coachâs new stopwatch be helpful in timing the sprint team? Why or why not?

physics


Order the seven basic spectral types from hottest to coldest.

astronomy


In Canada and the United Kingdom, devices that measure blood glucose levels provide a reading in millimoles per liter. If a measurement of 5.3 mMis observed, what is the concentration of glucose (C6H12O6) in mg/dL?

chemistry


What is the purpose of negative feedback mechanisms in homeostasis?

psychology


LO14.1Do some research: why isComcastincorporated in Pennsylvania?

business


Why do you think that unemployment rates are lower for individuals with more education?

economics


Should public funds be used to provide programs for Native Americans, Alaska Natives, and Native Hawaiians even though no one living today was responsible for depriving them of their lands? Why or why not?

political_science


A swan on a lake gets airborne by flapping its wings and running on top of the water. (a) If the swan must reach a velocity of 6.00 m/s to take off and it accelerates from rest at an average rate of 0\text{.}\text{350 m/s}^{2} , how far will it travel before becoming airborne? (b) How long does this take?

physics


How many electrons could be held in the second shell of an atom if the spin quantum numbermscould have three values instead of just two? (Hint: Consider the Pauli exclusion principle.)

chemistry


How does food serve as both physical and cultural nourishment?

anthropology


mathematics


When Chargaff was performing his experiments, the tetranucleotide hypothesis, which stated that DNA was composed of GACT nucleotide repeats, was the most widely accepted view of DNAâs composition. How did Chargaff disprove this hypothesis?

biology


In a physics classroom demonstration, an instructor inflates a balloon by mouth and then cools it in liquid nitrogen. When cold, the shrunken balloon has a small amount of light blue liquid in it, as well as some snow-like crystals. As it warms up, the liquid boils, and part of the crystals sublime, with some crystals lingering for a while and then producing a liquid. Identify the blue liquid and the two solids in the cold balloon. Justify your identifications using data from [Table 1.4](1-5-phase-changes) .

physics


The Hall effect is demonstrated in the laboratory. A thin rectangular strip of semiconductor with width 5 cm and cross-sectional area 2\ \text{mm}^{2} is attached to a battery and immersed in a field perpendicular to its surface. The Hall voltage reads 12.5 V and the measured drift velocity is 50 m/s. What is the magnetic field?

physics


The direct Coombs’ test is designed to detect when people have a disease that causes them to    A. have an excessively high fever.   B. quit making antibodies.   C. make too many red blood cells.   D. produce antibodies that bind to their own red blood cells.

biology


[LO 6.2](6-2-compare-and-contrast-perpetual-versus-periodic-inventory-systems) Which of the following is _not_ a reason for the physical inventory count to differ from what is recognized on the company’s books?    A. mismanagement   B. shrinkage   C. damage   D. sale of services to customers

business


business


political_science


The first species to live on new land, such as that formed from volcanic lava, are called ________.

biology


C. Wright Mills once said that sociologists need to develop a sociological __________ to study how society affects individuals.

sociology


Translate the following passage from The Iliad into English.

general


What happens to the urine excreted by the fetus when the kidneys begin to function?

biology


Compare the electric dipole moments of charges \pm Q separated by a distance _d_ and charges \pm Q\text{/}2 separated by a distance _d_ /2.

physics


Describe the two events that are common to all sexually reproducing organisms and how they fit into the different life cycles of those organisms.

biology


The major anion in extracellular fluid is ________.

biology


The pressure of a sample of gas is measured at sea level with a closed-end manometer. The liquid in the manometer is mercury. Determine the pressure of the gas in: (a) torr (b) Pa (c) bar

chemistry


From the perspective of an elementary school teacher, discuss the strategies you would implement to improve students' organization, memorization, and study skills. How do these strategies align with the cognitive abilities and limitations of children in middle childhood?

psychology


During neurulation, the neural plate transforms into which structure?

psychology


On a microeconomic demand curve, a decrease in price causes an increase in quantity demanded because the product in question is now relatively less expensive than substitute products. Explain why aggregate demand does not increase for the same reason in response to a decrease in the aggregate price level. In other words, what causes total spending to increase if it is not because goods are now cheaper?

economics


Newtonâs third law of motion says that, for every action force, there is a reaction force equal in magnitude but that acts in the opposite direction. Apply this law to gravitational forces acting between the Washington Monument and Earth.

physics


Which of the following terms would be used in the name of a muscle that moves the leg away from the body?

biology


Given the theory of identity status forwarded by Marcia (1980), what questions might you ask to determine an adolescentâs current identity status?

psychology


Are outcomes equally likely in this distribution? Why or why not?

mathematics


What is the change in length of a 3.00-cm-long column of mercury if its temperature changes from \text{37}\text{.}0\text{º}\text{C} to \text{40}\text{.}0\text{º}\text{C} , assuming the mercury is unconstrained?

physics


What is the difference between the price level and the rate of inflation?

economics


As of 2018, the current federal minimum wage is ________. $7.25 per hour$10 per hour$12.50 per hour$15 per hour

business


The process of bulk flow transports fluids in a plant. Describe the two main bulk flow processes.

biology


Why do the boiling points of the noble gases increase in the order He < Ne < Ar < Kr < Xe?

chemistry


Some fungi have proven medically useful because they can be used to produce _________.

biology


What is the wavelength of light falling on double slits separated by 2.00\ \mu\text{m} if the third-order maximum is at an angle of 60.0\text{°} ?

physics


Defend your use of a specific strategy in solving the problem.

general


Outline the steps needed to determine the limiting reactant when 0.50 mol of Cr and 0.75 mol of H 3 PO 4 react according to the following chemical equation.   2\text{Cr} + 2\text{H}_{3}\text{PO}_{4}\ \longrightarrow\ 2\text{CrPO}_{4} + 3\text{H}_{2} Determine the limiting reactant.

chemistry


mathematics


Kyle rowed his boat upstream for 50 minutes. It took him 30 minutes to row back downstream. His speed going upstream is two miles per hour slower than his speed going downstream. Find Kyle’s upstream and downstream speeds.

mathematics


What is the longest-wavelength EM radiation that can eject a photoelectron from silver, given that the binding energy is 4.73 eV? Is this in the visible range?

physics


Describe in your own words what is meant by a sprained ankle.

general


Ferns are simultaneously involved in promoting rock weathering, while preventing soil erosion. Explain how a single plant can perform both these functions, and how these functions are beneficial to its ecosystem.

biology


Why would a sacrificial anode made of lithium metal be a bad choice

chemistry


â«Ï/3Ï/22sec(2Î¸)tan(2Î¸)dÎ¸â«Ï/3Ï/22sec(2Î¸)tan(2Î¸)dÎ¸

mathematics


Dry ice, CO2(s), does not melt at atmospheric pressure. It sublimes at a temperature of â78 Â°C. What is the lowest pressure at which CO2(s) will melt to give CO2(l)? At approximately what temperature will this occur? (SeeFigure 10.34for the phase diagram.)

chemistry


Core qualities for building a foundation of ethics-based behaviors include ________.

business


What is the change in internal energy of a car if you put 12.0 gal of gasoline into its tank? The energy content of gasoline is {1\text{.}{3 \times \text{10}^{8}}\ \text{J/gal}}{} . All other factors, such as the car’s temperature, are constant.

physics


Of the four individual types of marks, what does a trademark identify?    A. Services provided to either consumers or other businesses.   B. Physical goods or commodities that are manufactured, produced, grown, or that exist naturally.   C. Both of the above.

business


In the [_Hunger Games_ movie](https://openstax.org/l/21HungGamesclip) , Katniss Everdeen fires a 0.0200-kg arrow from ground level to pierce an apple up on a stage. The spring constant of the bow is 330 N/m and she pulls the arrow back a distance of 0.55 m. The apple on the stage is 5.00 m higher than the launching point of the arrow. At what speed does the arrow (a) leave the bow? (b) strike the apple?

physics


To calculate the momentum of an object, which properties of an object do you need to know?

astronomy


Assume an economy has a budget surplus of 1,000, private savings of 4,000, and investment of 5,000.

economics


Find a Hamilton cycle of low weight for Graph 18, beginning at vertexq, and using the nearest neighborhood method. What is the weight of the cycle?

mathematics


How are comets related to meteor showers?

astronomy


Find the angle between 0{^\circ} and \text{360°} that is coterminal with 375{^\circ}.

mathematics


Which term describes the process whereby toxic substances increase along trophic levels of an ecosystem?

biology


An _LC_ circuit consists of a 3\text{.}\text{00}\ \text{mH} inductor and a 5\text{.}\text{00}\ {\mu F} capacitor. (a) Find its impedance at 60.0 Hz and 10.0 kHz. (b) Compare these values of Z with those found in [Example 23.12](23-12-rlc-series-ac-circuits) in which there was also a resistor.

physics


Verify that a 2\text{.}{3 \times \text{10}^{\text{17}}}\ \text{kg} mass of water at normal density would make a cube 60 km on a side, as claimed in [Example 31.1](31-3-substructure-of-the-nucleus) . (This mass at nuclear density would make a cube 1.0 m on a side.)

physics


Zack wants to drive from Omaha to Denver, a distance of 494 miles. If his car gets 38 miles to the gallon, how many gallons of gas will Zack need to get to Denver?

mathematics


We are often advised to not flick electric switches with wet hands, dry your hand first. We are also advised to never throw water on an electric fire. Why?

physics


Discuss why thoughts, feelings, or behaviors that are merely atypical or unusual would not necessarily signify the presence of a psychological disorder. Provide an example.

psychology


Assuming that no equilibria other than dissolution are involved, calculate the concentration of all solute species in each of the following solutions of salts in contact with a solution containing a common ion. Show that changes in the initial concentrations of the common ions can be neglected. (a) AgCl( _s_ ) in 0.025 _M_ NaCl (b) CaF 2 ( _s_ ) in 0.00133 _M_ KF (c) Ag 2 SO 4 ( _s_ ) in 0.500 L of a solution containing 19.50 g of K 2 SO 4 (d) Zn(OH) 2 ( _s_ ) in a solution buffered at a pH of 11.45

chemistry


Mount Everest is 8,850 meters tall. Convert the height to kilometers.

mathematics


The largest group of White people in the South _______. enslaved no oneenslaved between one and nine people eachenslaved between ten and ninety-nine people eachenslaved over one hundred people each

history


A set of parallel plates has a capacitance of 5.0\text{µ}\text{F} . How much charge must be added to the plates to increase the potential difference between them by 100 V?

physics


Find the exact solution for 2e^{5x - 2} - 9 = - x. If there is no solution, write _no solution_ .

mathematics


Explain briefly whether each of the following would cause GDP to overstate or understate the degree of change in the broad standard of living.

economics


True or false: Majority rule can fail to produce a single preferred outcome when there are more than two choices.

economics


The rate of a certain reaction doubles for every 10 Â°C rise in temperature. (a) How much faster does the reaction proceed at 45 Â°C than at 25 Â°C? (b) How much faster does the reaction proceed at 95 Â°C than at 25 Â°C?

chemistry


Can object-oriented concepts such as inheritance and composition be used to assemble patterns? Provide examples to illustrate your answer.

computer_science


Identify several examples of popular culture and describe how they form societal culture. How prevalent is the effect of these examples in your everyday life?

sociology


mathematics


Electrical power lines connected by two utility poles are sometimes heard to hum when driven into oscillation by the wind. The speed of the waves on the power lines depend on the tension. What provides the tension in the power lines?

physics


Calculate the mass of the Sun based on data for Earth’s orbit and compare the value obtained with the Sun’s actual mass.

physics


What are the four virtues that Plato thinks the state should be founded upon?

philosophy


Researchers have discovered that washing spinach with water several times does not prevent foodborne diseases due toE. coli. How can you explain this fact?

biology


Complete the changes in concentrations for each of the following reactions: (a)   \begin{matrix} {\text{AgI}(s)\ \longrightarrow\ } & {\text{Ag}^{\text{+}}\ (aq)} & {+ {\ \text{I}^{\text{−}}(aq)}} \\\ & & \\\ & x & \operatorname{\\_\\_\\_\\_\\_} \end{matrix} (b)   \begin{matrix} {\text{CaCO}_{3}(s)\ \longrightarrow\ } & {\text{Ca}^{\text{2+}}(aq) +} & {\text{CO}_{3}{}^{\text{2−}}(aq)} \\\ & & \\\ & \operatorname{\\_\\_\\_\\_} & x \end{matrix} (c)   \begin{matrix} {\text{Mg}{(\text{OH})}_{2}(s)\ \longrightarrow\ } & {\text{Mg}^{\text{2+}}(aq) +} & {2\text{OH}^{\text{−}}(aq)} \\\ & & \\\ & x & \operatorname{\\_\\_\\_\\_\\_} \end{matrix} (d)   \begin{matrix} {\text{Mg}_{3}(\text{PO}_{4})_{2}(s)\ \longrightarrow\ } & {3\text{Mg}^{\text{2+}}(aq) +} & {2\text{PO}_{4}{}^{\text{3−}}(aq)} \\\ & & \\\ & x & \operatorname{\\_\\_\\_\\_\\_} \end{matrix} (e)   \begin{matrix} {\text{Ca}_{5}(\text{PO}_{4})_{3}\text{OH}(s)\ \longrightarrow\ } & {5\text{Ca}^{\text{2+}}(aq) +} & {3\text{PO}_{4}{}^{\text{3−}}(aq) +} & {\text{OH}^{\text{−}}(aq)} \\\ & & & \\\ & \operatorname{\\_\\_\\_\\_\\_} & \operatorname{\\_\\_\\_\\_\\_} & x \end{matrix}

chemistry


[LO 1.4](1-4-describe-the-role-of-the-institute-of-management-accountants-and- the-use-of-ethical-standards) What other professional business organizations have a code of ethics?

business


Find the value of the sample size needed to be 95% confident that the sample proportion and the population proportion are within 4% of each other.  The sample proportion is 0.45.  Note:  Round all fractions up forn.

business


What is the angular velocity of a 75.0-cm-diameter tire on an automobile traveling at 90.0 km/h?

physics


This problem considers energy and work aspects of [Example 10.7](10-3-dynamics-of-rotational-motion-rotational-inertia) —use data from that example as needed. (a) Calculate the rotational kinetic energy in the merry-go-round plus child when they have an angular velocity of 20.0 rpm. (b) Using energy considerations, find the number of revolutions the father will have to push to achieve this angular velocity starting from rest. (c) Again, using energy considerations, calculate the force the father must exert to stop the merry-go-round in two revolutions

physics


The surface temperature of the Sun is about 5750 K. What is this temperature on the Fahrenheit scale?

physics


What is Brewster’s angle for light traveling in water that is reflected from crown glass?

physics


Consider our startup company committed to leveraging innovative technologies as a business growth facilitator. Describe how it can best use programming language implementation to create a repertoire of related services as well as a repository of code samples that may be used to generate business. Give precise examples and explain how the startup would be able to scale the resulting business (i.e., sustain the cost of doing business while increasing its number of customers).

computer_science


The nurse is teaching a client about food substitutions to help improve gut health. Which substitution is appropriate for milk?

nursing


Sanitization leaves an object free of microbes.

biology


What are some additional cloud service models that are available?

computer_science


\cos^{- 1}\left( \frac{1}{\sqrt{2}} \right)

mathematics


In a3Ã1093Ã109-year-old rock that originally contained some238U238U, which has a half-life of4.5Ã1094.5Ã109years, we expect to find some238U238Uremaining in it. Why are226Ra226Ra,222Rn222Rn, and210Po210Poalso found in such a rock, even though they have much shorter half-lives (1600 years, 3.8 days, and 138 days, respectively)?

physics


How does the mission of the European Union today differ from its original purpose?

political_science


According to national surveys, most U.S. parents support which type of sex education program in school?

sociology


Water faucets are often labeled with a red dot for hot water and a blue dot for cold. Given Wienâs law, does this labeling make sense?

astronomy


In World Trade Organization meetings, what do you think low-income countries lobby for?

economics


Which is the stronger acid, HClO 4 or HBrO 4 ? Why?

chemistry


biology


Will nations that are more involved in foreign trade tend to have higher trade imbalances, lower trade imbalances, or is the pattern unpredictable?

economics


How do public television stations, like PBS, try to overcome the free rider problem?

economics


What is the molar mass of a gas if 0.281 g of the gas occupies a volume of 125 mL at a temperature 126 °C and a pressure of 777 torr?

chemistry


Acting as a mentor provides ________. expert assistance to the venture startup team and self-growth for the mentoropportunities to diminish relationshipsthe mentor with professional developmentthe mentee with peer recognition

business


physics


mathematics


Is \left( {1,3} \right) a solution to the equation x + 4y = 12? How do you know?

mathematics


Starting with the definition of rate of effusion and Graham’s finding relating rate and molar mass, show how to derive the Graham’s law equation, relating the relative rates of effusion for two gases to their molecular masses.

chemistry


Dilute sodium cyanide solution is slowly dripped into a slowly stirred silver nitrate solution. A white precipitate forms temporarily but dissolves as the addition of sodium cyanide continues. Use chemical equations to explain this observation. Silver cyanide is similar to silver chloride in its solubility.

chemistry


How do modern societies participate in the animal trade?

anthropology


Is it possible for total utility to increase while marginal utility diminishes? Explain.

economics


Somatic motor neurons must be ________ to relax the external urethral sphincter to allow urination.

biology


LO14.2When corporations issue stock in exchange for professional services, what account(s) should be debited and what account(s) should be credited?

business


Using approximate values, calculate the slope of the curve in [Figure 2.60](2-problems-exercises#import-auto-id4122996) to verify that the velocity at t = \text{30.0 s} is approximately 0.24 m/s.

physics


Both functional and structural classifications can be used to describe an individual joint. Define the first sternocostal joint and the pubic symphysis using both functional and structural characteristics.

biology


LO10.4In the decision by a grocery company that is trying to decide whether to keep or drop the bakery department in its grocery stores, what would the bakery managerâs salary be in relationship to the decision if the manager will be laid off?

business


What is corporate social responsibility (CSR)?

business


Write the electron configuration for iron.

physics


biology


philosophy


What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cmâ3and contains 37.21% HCl by mass?

chemistry


political_science


How much solid NaCH 3 CO 2 •3H 2 O must be added to 0.300 L of a 0.50- _M_ acetic acid solution to give a buffer with a pH of 5.00? (Hint: Assume a negligible change in volume as the solid is added.)

chemistry


What are some of the bars to getting a trademark?    A. The prior use bar.   B. The functionality bar.   C. Subject matter bars.   D. All of the above.

business


Determine whether the following collection describes a well-defined set: âA group of small tomatoes.â

mathematics


Indicate the most important types of intermolecular attractions in each of the following solutions: (a) The solution in [Figure 11.2](11-1-the-dissolution- process) . (b) NO( _l_ ) in CO( _l_ ) (c) Cl 2 ( _g_ ) in Br 2 ( _l_ ) (d) HCl( _g_ ) in benzene C 6 H 6 ( _l_ )(e) Methanol CH 3 OH( _l_ ) in H 2 O( _l_ )

chemistry


In a ________ legislature, members tend to have low salaries, shorter sessions, and few staff members to assist them with their legislative functions.    A. professional   B. citizen   C. hybrid   D. unicameral

political_science


What is the temperature of an 11.2-L sample of carbon monoxide, CO, at 744 torr if it occupies 13.3 L at 55 Â°C and 744 torr?

chemistry


A first-order Bragg reflection maximum is observed when a monochromatic X-ray falls on a crystal at a 32.3\text{°} angle to a reflecting plane. What is the wavelength of this X-ray?

physics


LO2.1Assume you purchased ten shares ofRokuduring the companyâs IPO. Comment on why this might be a good investment. Consider factors such as what you expect to get from your investment, why you thinkRokuwould become a publicly traded company, and what you think is the landscape of the industryRokuis in. What other factors might be relevant to your decision to invest inRoku?

business


The Long Expedition established a short-lived republic in Texas known as ________. the Lone Star Republicthe Republic of TexasColumbianathe Republic of Fredonia

history


Find the third quartile of ages of cars in the lot. This means you will have to find the value such that3434, or 75%, of the cars are at most (less than or equal to) that age.

mathematics


[LO 11.5](11-5-describe-some-special-issues-in-accounting-for-long-term- assets) What is the difference between functional obsolescence and physical obsolescence?

business


It has a zero of multiplicity 3 at x = \frac{1}{2} and another zero at x = - 3 . It contains the point (1,8).

mathematics


The Civil Service Commission was created by the ________.

political_science


A high ankle sprain is an injury caused by over-stretching the ligaments connecting the tibia and fibula. What type of joint is involved in this sprain?

biology


Animal research suggests that in male rats the ________ is critical for the ability to engage in sexual behavior, but not for the motivation to do so. nucleus accumbensamygdalamedial preoptic area of the hypothalamushippocampus

psychology


mathematics


Suppose a star cluster were at such a large distance that it appeared as an unresolved spot of light through the telescope. What would you expect the overall color of the spot to be if it were the image of the cluster immediately after it was formed? How would the color differ after 1010years? Why?

astronomy


Assuming ideal solution behavior, what is the freezing temperature of a solution of 115.0 g of sucrose, C 12 H 22 O 11 , in 350.0 g of water? (a) Outline the steps necessary to answer the question. (b) Answer the question.

chemistry


A person tries to lift a stone by using a lever. If the lever arm is constant and the mass of the stone increases, what is true of the torque necessary to lift it?

physics


Movement at the shoulder joint that moves the upper limb laterally away from the body is called ________.

biology


LO12.5UseFigure 12.15as a reference to answer the following questions. If an employee makes $1,400 per month and files as single with no withholding allowances, what would be his monthly income tax withholding?What would it be if an employee makes $2,500 per month and files as single with two withholding allowances?

business


If you wish to reduce the stress (which is related to centripetal force) on high-speed tires, would you use large- or small-diameter tires? Explain.

physics


Many viruses enter host cells through receptor-mediated endocytosis. What is an advantage of this entry strategy?

biology


Schachter and Singerâs (1962) famous study informed subjects they would receive an injection of saline or epinephrine and then informed them of the reactions to expect from the injection (i.e. you will experience a change in heart rate), while providing no information regarding the effects of the stress hormone to a second uninformed group. The âSaline Injectionâ group was reported to have ________ response when placed with the ANGRY actor and showed ________ response when placed with the EUPHORIC actor.

psychology


A lumber distributor is loading pallets onto trucks with the intention of using the fewest trucks possible to send a shipment. The distributor loads the pallets with the greatest length that will fit on the truck first and continues loading until no more pallets will fit. Then the next truck is loaded using the same approach.

mathematics


What do economists (and used-car dealers) mean by a âlemonâ?

economics


Which of the following molecules have dipole moments? (a) CS 2 (b) SeS 2 (c) CCl 2 F 2 (d) PCl 3 (P is the central atom) (e) ClNO (N is the central atom)

chemistry


How far does light travel underwater during a time interval of 1.50\ \times \ 10^{-6}\ \text{s} ?

physics


Which of the following does a virus lack? Select all that apply.    A. ribosomes   B. metabolic processes   C. nucleic acid   D. glycoprotein

biology


Which hormone causes the regrowth of the endometrial lining of the uterus?

biology


business


Look up the values of the quantities in a_{\text{B}} = \frac{h^{2}}{{4\pi}^{2}m_{e}\text{kq}_{e}^{2}} , and verify that the Bohr radius a_{\text{B}} is {\text{0.529} \times \text{10}^{- \text{10}}}\ \text{m} .

physics


Determine the scaling factor between these two similar triangles.

mathematics


Which of the following doesnotrepresent a group that participated significantly in westward migration after 1870? African American âexodustersâ escaping racism and seeking economic opportunitiesformer Southern slaveholders seeking land and new financial opportunitiesrecent immigrants from Northern Europe and Canadarecent Chinese immigrants seeking gold in California

history


Work done on a system puts energy into it. Work done by a system removes energy from it. Give an example for each statement.

physics


Match each term with its description.  ___sporadic disease | A. the number of disease cases per 100,000 individuals   ---|---   ___endemic disease | B. a disease in higher than expected numbers around the world   ___pandemic disease | C. the number of deaths from a disease for every 10,000 individuals   ___morbidity rate | D. a disease found occasionally in a region with cases occurring mainly in isolation from each other   ___mortality rate | E. a disease found regularly in a region

biology


mathematics


Elemental carbon has one gas phase, one liquid phase, and two different solid phases, as shown in the phase diagram:  (a) On the phase diagram, label the gas and liquid regions. (b) Graphite is the most stable phase of carbon at normal conditions. On the phase diagram, label the graphite phase. (c) If graphite at normal conditions is heated to 2500 K while the pressure is increased to 10 10 Pa, it is converted into diamond. Label the diamond phase. (d) Circle each triple point on the phase diagram. (e) In what phase does carbon exist at 5000 K and 10 8 Pa? (f) If the temperature of a sample of carbon increases from 3000 K to 5000 K at a constant pressure of 10 6 Pa, which phase transition occurs, if any?

chemistry


One of the original founders of AIM was ________. Patsy MinkDennis BanksJerry RubinGlenn Weiser

history


What volume of 0.250MH2SO4solution is required to neutralize a solution that contains 5.00 g of CaCO3?

chemistry


Certain types of dinosaurs were bipedal (walked on two legs). What is a good reason that these creatures invariably had long tails if they had long necks?

physics


Describe how topography influences the characteristics and fertility of a soil.

biology


A uniformly charged half-ring of radius 10 cm is placed on a nonconducting table. It is found that 3.0 cm above the center of the half-ring the potential is –3.0 V with respect to zero potential at infinity. How much charge is in the half-ring?

physics


general


Explain, in terms of the properties of the four basic forces, why people notice the gravitational force acting on their bodies if it is such a comparatively weak force.

physics


Businesses today are concerned with balancing profitability with responsibility. Therefore, they should ________.    A. pay attention to culture   B. go beyond compliance   C. hire moral people   D. hire outside consultants to monitor their supply chain.

business


Distinguish between the following giving suitable examples

general


What aspects of physics would a chemist likely study in trying to discover a new chemical reaction?

physics


Which of the following is the name for molecules whose structures are nonsuperimposable mirror images?    A. structural isomers   B. monomers   C. polymers   D. enantiomers

biology


Rewrite the system of linear equations as an augmented matrix. \begin{array}{l} {14x - 2y + 13z = 140} \\\ {- 2x + 3y - 6z = - 1} \\\ {x - 5y + 12z = 11} \end{array}

mathematics


Marxism views the working class as __________.

political_science


Within the anarchy of the international system, states join ________ to work together to solve common problems.

political_science


Both propane and butane are used as gaseous fuels. Which compound produces more heat per gram when burned?

chemistry


How do we measure a Herfindahl-Hirschman Index? What does a low measure mean about the extent of competition?

economics


psychology


What were some of the primary values of the Moral Majority?

history


mathematics


True or falseâIf you drop a bar magnet through a copper tube, it induces an electric current in the tube.

physics


Two stars have proper motions of one arcsecond per year. Star A is 20 light-years from Earth, and Star B is 10 light-years away from Earth. Which one has the faster velocity in space?

astronomy


Why is the immune response after reinfection much faster than the adaptive immune response after the initial infection?

biology


What is consumer surplus? How is it illustrated on a demand and supply diagram?

economics


What theory of modern physics describes the interrelationships between space, time, speed, and gravity?

physics


Why should a financial investor care about diversification?

economics


In words, describe 1 âÎ²ForExercise 9.12.

mathematics


In what ways did westward expansion provide new opportunities for women and African Americans? In what ways did it limit these opportunities?

history


general


What is the (a) path of a proton and (b) the magnetic force on the proton that is traveling west to east with a kinetic energy of 10 keV in Earth’s magnetic field that has a horizontal component of 1.8 x 10 –5 T north and a vertical component of 5.0 x 10 –5 T down?

physics


Why does the fusion of light nuclei into heavier nuclei release energy?

physics


Does all life on Earth require sunshine?

astronomy


Suppose the local electrical utility, a legal monopoly based on economies of scale, was split into four firms of equal size, with the idea that eliminating the monopoly would promote competitive pricing of electricity. What do you anticipate would happen to prices?

economics


A car engine moves a piston with a circular cross-section of 7.500 ± 0.002 cm in diameter a distance of 3.250 ± 0.001 cm to compress the gas in the cylinder. (a) By what amount is the gas decreased in volume in cubic centimeters? (b) Find the uncertainty in this volume.

physics


\tan^{3}x - \tan\; x\;\sec^{2}x = \tan\left( {- x} \right)

mathematics


If there is only one external force (or torque) acting on an object, it cannot be in equilibrium.

physics


Both fusion and fission are nuclear reactions. Why is a very high temperature required for fusion, but not for fission?

chemistry


Describe some of the newborn reflexes. How might they promote survival?

psychology


mathematics


political_science


As mentioned in this chapter, one very dominant way of evaluating the sophistication of different societies is by measuring the amount of wealth generated by each one. Can you think of an alternative way of evaluating progress or development? Would that way reorder the global hierarchy? How might it change your way of thinking about your own society?

anthropology


What is a key constraint in the relational model?

computer_science


Membranes in living cells, including those in humans, are characterized by a separation of charge across the membrane. Effectively, the membranes are thus charged capacitors with important functions related to the potential difference across the membrane. Is energy required to separate these charges in living membranes and, if so, is its source the metabolization of food energy or some other source?

physics


A phone charger uses about 20 W. How many kilowatt-hours are needed to use the charger during a month if the charger is used for an average of 1.5 hours a day?

mathematics


Which of the following spectroscopic notations are not allowed? (a) 5s^{1} (b) 1d^{1} (c) 4s^{3} (d) 3p^{7} (e) 5g^{15} . State which rule is violated for each that is not allowed.

physics


________ pain results from direct injury to nerves in the peripheral or central nervous systems and often involves a burning or electric sensation.

psychology


Which types of planets are most easily detected by Doppler measurements? By transits?

astronomy


Why would a firm choose to use one or more of the anticompetitive practices described inRegulating Anticompetitive Behavior?

economics


What makes Native Americans unique as a subordinate group in the United States?    A. They are the only group that experienced expulsion.   B. They are the only group that was segregated.   C. They are the only group that was enslaved.   D. They are the only group that is indigenous to the United States.

sociology


In the equationÎU=QâPÎV, what doesPÎVindicate?

physics


Describe tuberculosis and the innocent bystander effect.

biology


Adele bought a skirt and a blouse. The skirt cost $15 more than the blouse. Let b represent the cost of the blouse. Write an expression for the cost of the skirt.

mathematics


One of the functions of the integumentary system is protection. Which of the following does not directly contribute to that function?

biology


The smallest independently functioning biological unit of an organism is a(n) ________.

biology


Cara is 17 years old. Caraâs mother and father both drink alcohol every night. They tell Cara that drinking is bad and she shouldnât do it. Cara goes to a party where beer is being served. What do you think Cara will do? Why?

psychology


The vertex is (–2,3) and a point on the graph is (3,6).

mathematics


A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________.

biology


After a test case fails, what is the next step to determine the cause of the failure?

computer_science


During a party, Eli loses a bet and is forced to drink a bottle of lemon juice. Not long thereafter, he begins complaining of having difficulty breathing, and his friends take him to the local emergency room. There, he is given an intravenous solution of bicarbonate. Why?

biology


The core of a star collapses during a supernova, forming a neutron star. Angular momentum of the core is conserved, and so the neutron star spins rapidly. If the initial core radius is 5\text{.}{0 \times \text{10}^{5}}\ \text{km} and it collapses to 10.0 km, find the neutron star’s angular velocity in revolutions per second, given the core’s angular velocity was originally 1 revolution per 30.0 days.

physics


In your opinion, which group had the easiest time coming to this country? Which group had the hardest time? Why?

sociology


Consider the solutions presented: (a) Which of the following sketches best represents the ions in a solution of Fe(NO3)3(aq)? (b) Write a balanced chemical equation showing the products of the dissolution of Fe(NO3)3.

chemistry


A client is being evaluated for therapy for their nicotine use disorder. The nurse notes in their history that the client has been diagnosed with a major depressive disorder but is not currently receiving any treatment for that condition. Which of the medications used for smoking cessation would the nurse anticipate the prescribing provider will initiate to both treat the clientâs depression and help with smoking cessation?

nursing


mathematics


Which white matter structure carries information from the cerebral cortex to the cerebellum?

biology


CH4is methane. This compound is ________.

biology


Which research approach is best suited to the scientific method?    A. Questionnaire   B. Case study   C. Ethnography   D. Secondary data analysis

sociology


A 5.0-eV electron impacts on a barrier of with 0.60 nm. Find the probability of the electron to tunnel through the barrier if the barrier height is (a) 7.0 eV; (b) 9.0 eV; and (c) 13.0 eV.

physics


If imports exceed exports, is it a trade deficit or a trade surplus? What about if exports exceed imports?

economics


Describe how hormone receptors can play a role in affecting the size of the responses of tissues to hormones.

biology


Bacteria isolated from a hot tub at 39 °C are probably which of the following?    A. thermophiles   B. psychrotrophs   C. mesophiles   D. hyperthermophiles

biology


\left\\{ \begin{array}{l} {9x + 4y = 2} \\\ {5x + 3y = 5} \end{array} \right.

mathematics


The AUC and AUA codons in mRNA both specify isoleucine. What feature of the genetic code explains this?

biology


If you were a dietician who had a young female patient with a family history of osteoporosis, what foods would you suggest she include in her diet? Why?

biology


Write a nuclear reaction for each step in the formation of {}_{\mspace{9mu} 84}^{218}\text{Po} from {}_{\mspace{9mu} 92}^{238}\text{U}, which proceeds by a series of decay reactions involving the step-wise emission of α, β, β, α, α, α particles, in that order.

chemistry


Explain how tidal forces are causing Earth to slow down.

astronomy


political_science


Atoms of which group in the periodic table have a valence shell electron configuration ofns2?

chemistry


(a) How long would it take a 1.50\ \ \times \ 10^{5}\text{-kg} airplane with engines that produce 100 MW of power to reach a speed of 250 m/s and an altitude of 12.0 km if air resistance were negligible? (b) If it actually takes 900 s, what is the power? (c) Given this power, what is the average force of air resistance if the airplane takes 1200 s? ( _Hint:_ You must find the distance the plane travels in 1200 s assuming constant acceleration.)

physics


In addition to social movements, social change is also caused by technology, social institutions, population and ______.

sociology


(a) All but the closest galaxies are receding from our own Milky Way Galaxy. If a galaxy \text{12}\text{.}{0 \times \text{10}^{9}}\ \text{ly} ly away is receding from us at @. 0.900c , at what velocity relative to us must we send an exploratory probe to approach the other galaxy at 0.990c , as measured from that galaxy? (b) How long will it take the probe to reach the other galaxy as measured from the Earth? You may assume that the velocity of the other galaxy remains constant. (c) How long will it then take for a radio signal to be beamed back? (All of this is possible in principle, but not practical.)

physics


A battery-operated car uses a 12.0-V system. Find the charge the batteries must be able to move in order to accelerate the 750 kg car from rest to 25.0 m/s, make it climb a 2.00\ \times \ 10^{2}\text{-m} high hill, and finally cause it to travel at a constant 25.0 m/s while climbing with 5.00\ \times \ 10^{2}\text{-N} force for an hour.

physics


A nurse is providing discharge instructions to a client who has been prescribed, concomitantly with fosfomycin, phenazopyridine hydrochloride for symptomatic relief of urinary pain and discomfort. Which statement by the client indicates a need for further education regarding the use of phenazopyridine hydrochloride?

nursing


Using the above data, what is the unemployment rate? These data are U.S. statistics from ࠚ. How does it compare to the February 2015 unemployment rate computed earlier?

economics


\left\\{ \begin{array}{l} {x + 4y = -1} \\\ {x = 3} \end{array} \right.

mathematics


Show that, for a flat mirror, h_{\text{i}} = h_{\text{o}} , given that the image is the same distance behind the mirror as the distance of the object from the mirror.

physics


Why are fatty acids better than glycogen for storing large amounts of chemical energy?

biology


mathematics


Suppose you are using total internal reflection to make an efficient corner reflector. If there is air outside and the incident angle is \text{45}\text{.}0º , what must be the minimum index of refraction of the material from which the reflector is made?

physics


One of the early hypotheses to explain the high redshifts of quasars was that these objects had been ejected at very high speeds from other galaxies. This idea was rejected, because no quasars with large blueshifts have been found. Explain why we would expect to see quasars with both blueshifted and redshifted lines if they were ejected from nearby galaxies.

astronomy


In the context of a lioness hunting on the savannah, why would the sympathetic systemnotactivate the digestive system?

biology


Write a balanced chemical equation for the reaction of an excess of oxygen with each of the following. Remember that oxygen is a strong oxidizing agent and tends to oxidize an element to its maximum oxidation state. (a) Mg (b) Rb (c) Ga (d) C2H2 (e) CO

chemistry


A central bank can allow its currency to fall indefinitely, but it cannot allow its currency to rise indefinitely. Why not?

economics


[LO 13.1](13-1-describe-sustainability-and-the-way-it-creates-business-value) What type of information do you think an oil company should include in their sustainability report? What about a car manufacturer? A large retailer?

business


Predict the electron pair geometry and the molecular structure of each of the following ions: (a) H3O+ (b)PCl4âPCl4â (c)SnCl3+SnCl3+ (d)BrCl4âBrCl4â (e) ICl3 (f) XeF4 (g) SF2

chemistry


Demonstrate using the OPAC and your knowledge of library organization to find a book about turtles.

general


computer_science


How did everyday life in the American West hasten equality for women who settled the land?

history


Which of the following best describes the evolution of data management in the data science process?

computer_science


Describe how a positively charged object can be used to give another object a negative charge. What is the name of this process?

physics


Describe the primary differences in the role of citizens in government among the federal, confederation, and unitary systems.

political_science


Which area of I-O psychology measures job satisfaction?

psychology


Plants use carbon dioxide from the air and are therefore called _____.

biology


(a) Light reflected at \text{62}\text{.}5º from a gemstone in a ring is completely polarized. Can the gem be a diamond? (b) At what angle would the light be completely polarized if the gem was in water?

physics


________ stimuli like a ringing bell are stimuli that signal and become associated with the unconditioned stimulus.

psychology


mathematics


You are prescribed a nebulizer solution to aid with asthma. If the solution is 0.7% w/v, what volume is needed to deliver a 7 mg dose?

mathematics


The equationsx=cosh(3t),x=cosh(3t),y=2sinh(3t)y=2sinh(3t)represent a hyperbola.

mathematics


Children of divorced parents are _______ to divorce in their own marriage than children of parents who stayed married.

sociology


When the myosin globular head is attached to the thin filament binding site and proceeds to angle itself toward the center of the sarcomere to pull the thin filament inward while bound by Adenosine Diphosphate (ADP), this is called a ________.

psychology


Identify one possible decay for each of the following antiparticles: (a) \overset{\text{−}}{n} , (b) \overset{\text{—}}{\text{Λ}^{0}} , (c) \text{Ω}^{+} , (d) \text{K}^{\text{−}} , and (e) \overset{\text{−}}{\Sigma} .

physics


How can the effect of the poverty trap be reduced?

economics


At the 5% significance level, is there a difference in the mean jump heights among the teams?

mathematics


What criteria would you use to assess...?

general


At what time is the voltage across the inductor of the _RL_ circuit of [Figure 14.12](14-4-rl-circuits) (b) a maximum?

physics


Jenny mixes up a batch of pancake batter, then stirs in some chocolate chips. As she is waiting for the first few pancakes to cook, she notices the chocolate chips sinking to the bottom of the clear glass mixing bowl. The chocolate-chip batter is an example of a ________.

biology


Which description is an example of a phenotype?

biology


What is the highest-order maximum for 400-nm light falling on double slits separated by 25.0\ \mu\text{m} ?

physics


Earth can be considered as a spherical capacitor with two plates, where the negative plate is the surface of Earth and the positive plate is the bottom of the ionosphere, which is located at an altitude of approximately 70 km. The potential difference between Earth’s surface and the ionosphere is about 350,000 V. (a) Calculate the capacitance of this system. (b) Find the total charge on this capacitor. (c) Find the energy stored in this system.

physics


[LO 6.3](6-3-analyze-and-record-transactions-for-merchandise-purchases-using- the-perpetual-inventory-system) A retailer returns $400 worth of inventory to a manufacturer and receives a full refund. What accounts recognize this return before the retailer remits payment to the manufacturer?    A. accounts payable, merchandise inventory   B. accounts payable, cash   C. cash, merchandise inventory   D. merchandise inventory, cost of goods sold

business


If you wanted to prove the United States is suffering from low voter turnout, a calculation based on which population would yield the lowest voter turnout rate?

political_science


Would you expect to find more impact craters on Io or Callisto? Why?

astronomy


In the United States, most histoplasmosis cases occur    A. in the Pacific northwest.   B. in the desert southwest.   C. in the Mississippi river valley.   D. in Colorado river valley.

biology


Where did the carbon atoms in the trunk of a tree on your college campus come from originally? Where did the neon in the fabled âneon lights of Broadwayâ come from originally?

astronomy


Combine any two sports to develop a new Olympic sport.

general


It is common to develop a product based on limited feedback using as few resources as possible only to watch as no one uses or buys the product. Can failure be a valuable part of finding product-market fit? Why or why not?

business


LO11.4What is the basic benefit of using IRR?

business