mouryat9/CogBench huggingface dataset:
Subject: physics
Question: The accompanied figure shows an arrangement for measuring mass of ions by an instrument called the mass spectrometer. An ion of mass _m_ and charge + _q_ is produced essentially at rest in source _S_ , a chamber in which a gas discharge is taking place. The ion is accelerated by a potential difference V_{\text{acc}} and allowed to enter a region of constant magnetic field \mathbf{\overset{\rightarrow}{B}}_{0}. In the uniform magnetic field region, the ion moves in a semicircular path striking a photographic plate at a distance _x_ from the entry point. Derive a formula for mass m in terms of B_{0}, _q_ , V_{\text{acc}}, and _x_ .
Subject: chemistry
Question: Convert the values ofKcto values ofKPor the values ofKPto values ofKc. (a)N2(g)+3H2(g)⇌2NH3(g)Kc=0.50at400°CN2(g)+3H2(g)⇌2NH3(g)Kc=0.50at400°C (b)H2(g)+I2(g)⇌2HI(g)Kc=50.2at448°CH2(g)+I2(g)⇌2HI(g)Kc=50.2at448°C (c)Na2SO4·10H2O(s)⇌Na2SO4(s)+10H2O(g)KP=4.08×10−25at25°CNa2SO4·10H2O(s)⇌Na2SO4(s)+10H2O(g)KP=4.08×10−25at25°C (d)H2O(l)⇌H2O(g)KP=0.122at50°CH2O(l)⇌H2O(g)KP=0.122at50°C
Subject: physics
Question: More force is required to pull the plug in a full bathtub than when it is empty. Does this contradict Archimedes’ principle? Explain your answer.
Subject: political_science
Question: How are community responsibilities carried out?
Subject: computer_science
Question: How are processes managed by the OS conceptually?
Subject: mathematics
Question: Fill in the blanks on the graph with the areas, upper and lower limits of the confidence interval, and the sample mean. Figure8.8
Subject: political_science
Question: Representative democratic governments ________.
Subject: business
Question: [LO 3.2](3-2-calculate-a-break-even-point-in-units-and-dollars) A company sells its products for $80 per unit and has per-unit variable costs of $30. What is the contribution margin per unit?    A. $30   B. $50   C. $80   D. $110
Subject: astronomy
Question: Explain how the zodiacal constellations are different from the other constellations.
Subject: physics
Question: Calculate the contact angle \theta for olive oil if capillary action raises it to a height of 7.07 cm in a glass tube with a radius of 0.100 mm. Is this value consistent with that for most organic liquids?
Subject: astronomy
Question: What is, by far, the most abundant component of Earth’s atmosphere?
Subject: business
Question: LO10.1Can a business change from one inventory costing method to another any time they wish? Explain.
Subject: computer_science
Question: Consider a single perceptron model that is being trained to diagnose the flu in patients based on three simple markers. Suppose the next data point in the training set isx=(0.68,0.42,0.99), and suppose that the correct classification for this combination of markers isy=1(flu diagnosed). With current weightsw=(0.7,0.2,−0.3)and biasb=−0.3, does the perceptron correctly diagnose the patient as having the flu? If not, use the perceptron learning rule withh=0.2to update the weights and bias. Is there an improvement in classifying this data point?
Subject: anthropology
Question: Under what circumstances is it appropriate for a person in one culture to adopt elements from another culture, such as dress, food, or speech? Is that cultural appropriation? Why or why not?
Subject: mathematics
Question: What is the average velocity of the bullet for the first half-second?
Subject: psychology
Question: An action potential is due to:
Subject: mathematics
Question: \frac{18w}{6w - 1} + \frac{3w - 2}{1 - 6w}
Subject: mathematics
Question: FindP(musician is a man AND had private instruction).
Subject: sociology
Question: In 2014, what was the largest city in the world?
Subject: computer_science
Question: a.Create a graph for the binomial distribution withn=50andp=0.75. b.Analyze the graph and comment on symmetry and skewness.
Subject: physics
Question: Consider the axial magnetic field B_{y} = {{\mu_{0}IR^{2}}\text{/}{2(y^{2}}} + R^{2})^{3\text{/}2} of the circular current loop shown below. (a) Evaluate \int_{\text{−}a}^{a}{B_{y}dy.} Also show that \underset{a\rightarrow\infty}{\text{lim}}{\int_{\text{−}a}^{a}B_{y}}dy = \mu_{0}I. (b) Can you deduce this limit without evaluating the integral? ( _Hint:_ See the accompanying figure.)
Subject: biology
Question: Which of the following statements is not true?
Subject: chemistry
Question: In a common experiment in the general chemistry laboratory, magnesium metal is heated in air to produce MgO. MgO is a white solid, but in these experiments it often looks gray, due to small amounts of Mg3N2, a compound formed as some of the magnesium reacts with nitrogen. Write a balanced equation for each reaction.
Subject: business
Question: Discuss the importance of having personal resources, such as a strong support system, when starting a venture.
Subject: biology
Question: In type II diabetes, insulin is produced but is nonfunctional. These patients are described as “starving in a sea of plenty,” because their blood glucose levels are high, but none of the glucose is transported into the cells. Describe how this leads to malnutrition.
Subject: physics
Question: This problem returns to the tightrope walker studied in [Example 4.6](4-5-normal-tension-and-other-examples-of-forces) , who created a tension of {3\text{.}{\text{94} \times \text{10}^{3}}\ N}{} in a wire making an angle \text{5.0º} below the horizontal with each supporting pole. Calculate how much this tension stretches the steel wire if it was originally 15 m long and 0.50 cm in diameter.
Subject: economics
Question: Is a monopolist allocatively efficient? Why or why not?
Subject: mathematics
Question: f(x) = \sqrt{x - 2} + 4
Subject: economics
Question: Name and explain some of the reasons why wages are likely to be sticky, especially in downward adjustments.
Subject: biology
Question: Discuss the structures that contribute to support of the shoulder joint.
Subject: business
Question: The following are possible remedies to buyers under the UCC:
Subject: physics
Question: A track star runs a 400-m race on a 400-m circular track in 45 s. What is his angular velocity assuming a constant speed?
Subject: mathematics
Question: P(x= 4) = _______
Subject: computer_science
Question: What is the difference between the front end, middle end, and back end compiler phases?
Subject: chemistry
Question: Using the standard enthalpy of formation data inAppendix G, show how the standard enthalpy of formation of HCl(g) can be used to determine the bond energy.
Subject: mathematics
Question: How many acres will be left to mow after 100 hours of work?
Subject: philosophy
Question: The Pre-Socratics were wrong in their various metaphysical explanations. Yet they are considered to have contributed significantly to the history of philosophy and metaphysics. How could they have contributed if they were wrong?
Subject: economics
Question: Will demand curves have the same exact shape in all markets? If not, how will they differ?
Subject: economics
Question: Suppose that Sony's R&D investment in digital devices has increased profits by 20%. Is this a private or social benefit?
Subject: mathematics
Question: \frac{- x^{2} + 36x + 70}{x^{3} - 125}
Subject: psychology
Question: Which of the following best describes the therapeutic window of a drug?
Subject: mathematics
Question: \mathbf{\text{r}}(t) = \left\langle {e^{t},\frac{1}{\sqrt{4 - t}},\text{sec}(t)} \right\rangle
Subject: physics
Question: Is Earth an inertial frame of reference? Is the Sun? Justify your response.
Subject: economics
Question: Suppose the cost of machines increases to $55, while the cost of labor stays at $40. How would that affect the total cost of the three methods? Which method should the firm choose now?
Subject: mathematics
Question: \lim\limits_{x\rightarrow 3^{+}}\left( {3x - \lbrack x\rbrack} \right)
Subject: business
Question: Which kind of mark is owned by the following companies?    A. Apple.   B. Xerox.   C. Coppertone.   D. Windows.
Subject: computer_science
Question: Why is case analysis important?
Subject: political_science
Question: All political behavior is based on ________.
Subject: physics
Question: What current is needed in the solenoid described in [Exercise 22.64](22-problems-exercises#eip-681) to produce a magnetic field \text{10}^{4}{} times the Earth’s magnetic field of 5\text{.}{\text{00} \times \text{10}^{- 5}}\ T ?
Subject: chemistry
Question: Use valence bond theory to explain the bonding in F2, HF, and ClBr. Sketch the overlap of the atomic orbitals involved in the bonds.
Subject: mathematics
Question: f(x) = - \left| {x - 3} \right|
Subject: physics
Question: Consider the graph shown below of a compression wave. Shown are snapshots of the wave function for t = 0.000\ \text{s} (blue) and t = 0.005\ \text{s} (orange). What are the wavelength, maximum displacement, velocity, and period of the compression wave?
Subject: physics
Question: Consider two wave functions y_{1}\left( {x,t} \right) = A\ \text{sin}\left( {kx - \omega t} \right) and y_{2}\left( {x,t} \right) = A\ \text{sin}\left( {kx + \omega t + \phi} \right) . What is the wave function resulting from the interference of the two wave? ( _Hint:_ \text{sin}\left( {\alpha \pm \beta} \right) = \text{sin}\ \alpha\ \text{cos}\ \beta \pm \text{cos}\ \alpha\ \text{sin}\ \beta and \phi = \frac{\phi}{2} + \frac{\phi}{2} .)
Subject: physics
Question: Another known cause of red shift in light is the source being in a high gravitational field. Discuss how this can be eliminated as the source of galactic red shifts, given that the shifts are proportional to distance and not to the size of the galaxy.
Subject: physics
Question: The force exerted by a diving board is conservative, provided the internal friction is negligible. Assuming friction is negligible, describe changes in the potential energy of a diving board as a swimmer dives from it, starting just before the swimmer steps on the board until just after his feet leave it.
Subject: biology
Question: Restrictive airway diseases ________.
Subject: physics
Question: A solid cylindrical conductor of radius _a_ is surrounded by a concentric cylindrical shell of inner radius _b_ . The solid cylinder and the shell carry charges + _Q_ and – _Q_ , respectively. Assuming that the length _L_ of both conductors is much greater than _a_ or _b_ , determine the electric field as a function of _r_ , the distance from the common central axis of the cylinders, for (a) r < a; (b) a < r < b; and (c) r > b.
Subject: physics
Question: Critical Thinking A microscope has the objective lens 6.00 mm from an object. The focal length of the objective lens is 4.00 mm. The eyepiece has a focal length of 50.0 mm and is initially 25.0 mm from the objective lens. (a) The objective lens is moved to 5.00 mm from the objective, effectively lengthening the microscope. How does this affect the magnification of the microscope? (b) Does moving the objective increase closer to the object increase or decrease the magnification, or does it remain the same? (c) Do you think moving the objective from 6 mm to 7 mm from the object will increase or decrease the magnification of the microscope, or will it likely remain the same? (d) What indicates whether the image is upright or inverted?
Subject: business
Question: [LO 12.1](12-1-explain-the-importance-of-performance-measurement) Why might a manager focused solely on accounting numbers miss opportunities for future benefits?
Subject: biology
Question: Where do DAG and IP3originate?
Subject: astronomy
Question: Describe the process by which the action of a black hole can explain the energy radiated by quasars.
Subject: biology
Question: Which term is used to describe the continued divergence of species based on the low fitness of hybrid offspring?
Subject: chemistry
Question: Write the Lewis structures for each of the following: (a) NH 2− (b) N 2 F 4 (c) \text{NH}_{2}{}^{-} (d) NF 3 (e) \text{N}_{3}{}^{-}
Subject: business
Question: LO9.4Discuss the advantages and disadvantages of a cost-based transfer pricing approach.
Subject: physics
Question: At what angle is light inside crown glass completely polarized when reflected from water, as in a fish tank?
Subject: physics
Question: Professional Application Two piloted satellites approach one another at a relative speed of 0.250 m/s, intending to dock. The first has a mass of 4\text{.}{\text{00} \times \text{10}^{3}}\ \text{kg} , and the second a mass of 7\text{.}{\text{50} \times \text{10}^{3}}\ \text{kg} . If the two satellites collide elastically rather than dock, what is their final relative velocity?
Subject: mathematics
Question: Given the function,   R(x) = \frac{2}{2x^{2} + x - 15}, find the values of x that make the function less than or equal to 0.
Subject: psychology
Question: In diffusion, molecules move:
Subject: physics
Question: A transverse wave on a string is modeled with the wave function y\left( {x,t} \right) = (0.20\ \text{cm})\text{sin}\left( {2.00\ \text{m}^{-1}x - 3.00\ \text{s}^{-1}t + \frac{\pi}{16}} \right). What is the height of the string with respect to the equilibrium position at a position x = 4.00\ \text{m} and a time t = 10.00\ \text{s}?
Subject: mathematics
Question: r = \frac{1}{4 + 3\mspace{9mu}\sin\mspace{7mu}\theta}
Subject: mathematics
Question: A patient is prescribed 0.75 mg/kg of a drug to be delivered intramuscularly once per day. If the drug is available in 2.5 mg/mL and the patient weighs 63 kg, how many milliliters of the drug should be given per day?
Subject: physics
Question: (a) The “lead” in pencils is a graphite composition with a Young’s modulus of about {1{\times \text{10}^{9}}\ {\text{N}/\text{m}^{2}}}{} . Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. (b) Is the answer reasonable? That is, does it seem to be consistent with what you have observed when using pencils?
Subject: computer_science
Question: In cyber economics, what do we call the network of utilities, roadways, railroads, and buildings necessary to support our transportation, commerce, and other systems?
Subject: biology
Question: Use a Punnett square to predict the offspring in a cross between a tall pea plant (heterozygous) and a tall pea plant (heterozygous). What is the genotypic ratio of the offspring?
Subject: political_science
Question: __________ is a name for the press that references its role in helping the public make sure the government is working truthfully.
Subject: biology
Question: How do gap junctions and intercalated disks aid contraction of the heart?
Subject: mathematics
Question: The perimeter of a city rectangular park is 1428 feet. The length is 78 feet more than twice the width. Find the length and width of the park.
Subject: business
Question: What simple tools can an entrepreneur use to get organized and do what is necessary throughout the month or year?
Subject: chemistry
Question: The active ingredient formed by aspirin in the body is salicylic acid, C 6 H 4 OH(CO 2 H). The carboxyl group (−CO 2 H) acts as a weak acid. The phenol group (an OH group bonded to an aromatic ring) also acts as an acid but a much weaker acid. List, in order of descending concentration, all of the ionic and molecular species present in a 0.001- _M_ aqueous solution of C 6 H 4 OH(CO 2 H).
Subject: business
Question: LO6.5A buyer purchases $250 worth of goods on credit from a seller. Shipping charges are $50. The terms of the purchase are 2/10, n/30, FOB Destination. What, if any, journal entry or entries will the buyer record for these transactions?
Subject: nursing
Question: A 76-year-old client with diabetes and renal impairment is scheduled for a diagnostic test requiring the use of contrast dye. Which of the following drugs should the nurse instruct the client to stop taking 24 hours prior to the procedure?
Subject: chemistry
Question: Evaporation of sweat requires energy and thus take excess heat away from the body. Some of the water that you drink may eventually be converted into sweat and evaporate. If you drink a 20-ounce bottle of water that had been in the refrigerator at 3.8 °C, how much heat is needed to convert all of that water into sweat and then to vapor? (Note: Your body temperature is 36.6 °C. For the purpose of solving this problem, assume that the thermal properties of sweat are the same as for water.)
Subject: mathematics
Question: x^{4} - 13x^{2} - 30
Subject: physics
Question: Suppose an ice hockey puck strikes a hockey stick that lies flat on the ice and is free to move in any direction. Which quantities are likely to be conserved: angular momentum, linear momentum, or kinetic energy (assuming the puck and stick are very resilient)?
Subject: mathematics
Question: What is the mean?
Subject: physics
Question: (a) If the rocket sled shown in [Figure 4.31](4-problems-exercises#fs- id1870792) starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is 2100 kg, the thrust T is 2.4 \times 10^{4} N, and the force of friction opposing the motion is known to be 650 N. (b) Why is the acceleration not one-fourth of what it is with all rockets burning?
Subject: physics
Question: What is the mass of a deep breath of air having a volume of 2.00 L? Discuss the effect taking such a breath has on your body’s volume and density.
Subject: physics
Question: You are coasting on your 10-kg bicycle at 15 m/s and a 5.0-g bug splatters on your helmet. The bug was initially moving at 2.0 m/s in the same direction as you. If your mass is 60 kg, (a) what is the initial momentum of you plus your bicycle? (b) What is the initial momentum of the bug? (c) What is your change in velocity due to the collision with the bug? (d) What would the change in velocity have been if the bug were traveling in the opposite direction?
Subject: computer_science
Question: What is the process of collaborating across international borders to design and develop new goods and services for the global marketplace?
Subject: chemistry
Question: Suppose that the half-life of steroids taken by an athlete is 42 days. Assuming that the steroids biodegrade by a first-order process, how long would it take for164164of the initial dose to remain in the athlete’s body?
Subject: computer_science
Question: What are some benefits of implementing business intelligence in an organization?
Subject: physics
Question: What creates a greater magnitude of force, two charges +qa distance r apart or two charges –qthe same distance apart?
Subject: sociology
Question: How do you think the issue of e-waste should be dealt with? Should the responsibility fall to the companies that make the products or the consumer who buys them? Would your buying habits be different if you had to pay to recycle old electronics?
Subject: biology
Question: Why is it difficult to identify the cause of many nervous system disorders?
Subject: mathematics
Question: ⓐ \sqrt[9]{d^{9}}   ⓑ
Subject: economics
Question: State whether each of the following events involves a financial flow to the Mexican economy or a financial flow out of the Mexican economy:    A. Mexico imports services from Japan   B. Mexico exports goods to Canada   C. U.S. investors receive a return from past financial investments in Mexico
Subject: mathematics
Question: What is 70% of 200?
Subject: astronomy
Question: What is the evidence that a large fraction of the matter in the universe is invisible?
Subject: biology
Question: Newborns are at much higher risk for dehydration than adults. Why?
Subject: physics
Question: What does radiation therapy, used to treat cancer patients, have to do with physics?
Subject: biology
Question: Which of the following would be a virulence factor of a pathogen?    A. a surface protein allowing the pathogen to bind to host cells   B. a secondary host the pathogen can infect   C. a surface protein the host immune system recognizes   D. the ability to form a provirus
Subject: physics
Question: (a) Calculate the relativistic kinetic energy of a 1000-kg car moving at 30.0 m/s if the speed of light were only 45.0 m/s. (b) Find the ratio of the relativistic kinetic energy to classical.
Subject: mathematics
Question: lim(x,y)→(1,1)4xyx−2y2lim(x,y)→(1,1)4xyx−2y2
Subject: chemistry
Question: Which of the following gases diffuse more slowly than oxygen? F2, Ne, N2O, C2H2, NO, Cl2, H2S
Subject: astronomy
Question: Describe how the mass, luminosity, surface temperature, and radius of main-sequence stars change in value going from the “bottom” to the “top” of the main sequence.
Subject: mathematics
Question: 4y^{2} - 6y = 4
Subject: psychology
Question: If you wanted to trace a neural pathway in mice, which technique would be best?
Subject: business
Question: [LO 4.2](4-2-discuss-the-adjustment-process-and-illustrate-common-types-of- adjusting-entries) Why do adjusting entries always include both balance sheet and income statement accounts?
Subject: biology
Question: The decimal reduction time refers to the amount of time it takes to which of the following?    A. reduce a microbial population by 10%   B. reduce a microbial population by 0.1%   C. reduce a microbial population by 90%   D. completely eliminate a microbial population
Subject: computer_science
Question: Database design and management are crucial for businesses because they ________.
Subject: nursing
Question: A nurse is reviewing a client’s medication profile and notices that they are taking isoniazid, rifampin, ethambutol, and pyrazinamide for tuberculosis. These drugs can affect the function of which of the following organ systems?
Subject: biology
Question: Which of the following membranes covers the stomach?
Subject: economics
Question: Should people typically pay more attention to their real income or their nominal income? If you choose the latter, why would that make sense in today’s world? Would your answer be the same for the 1970s?
Subject: history
Question: Truman referred to his program of economic and social reform as the ________.    A. New Deal   B. Square Deal   C. Fair Deal   D. Straight Deal
Subject: mathematics
Question: h(x,y,z)=x3e2yzh(x,y,z)=x3e2yz
Subject: physics
Question: Radio waves transmitted through empty space at the speed of light \left( {v = c = 3.00\ \times \ 10^{8}\ \text{m/s}} \right) by the _Voyager_ spacecraft have a wavelength of 0.120 m. What is their frequency?
Subject: business
Question: In what way are trademarked designs and trade dress similar to design patents?    A. All three protect the unique look of a company’s products from being infringed.   B. All three protect only the nonfunctional elements of the product’s appearance.   C. Both of these.
Subject: chemistry
Question: Most people find waterbeds uncomfortable unless the water temperature is maintained at about 85 °F. Unless it is heated, a waterbed that contains 892 L of water cools from 85 °F to 72 °F in 24 hours. Estimate the amount of electrical energy required over 24 hours, in kWh, to keep the bed from cooling. Note that 1 kilowatt-hour (kWh) = 3.6 \times 10 6 J, and assume that the density of water is 1.0 g/mL (independent of temperature). What other assumptions did you make? How did they affect your calculated result (i.e., were they likely to yield “positive” or “negative” errors)?
Subject: biology
Question: What is one difference between specimen preparation for a transmission electron microscope (TEM) and preparation for a scanning electron microscope (SEM)?    A. Only the TEM specimen requires sputter coating.   B. Only the SEM specimen requires sputter-coating.   C. Only the TEM specimen must be dehydrated.   D. Only the SEM specimen must be dehydrated.
Subject: physics
Question: Professional Application Explain in terms of impulse how padding reduces forces in a collision. State this in terms of a real example, such as the advantages of a carpeted vs. tile floor for a day care center.
Subject: chemistry
Question: Show by suitable net ionic equations that each of the following species can act as a Brønsted-Lowry base: (a) H 2 O (b) OH − (c) NH 3 (d) CN − (e) S 2− (f) \text{H}_{2}\text{PO}_{4}{}^{\text{−}}
Subject: mathematics
Question: Ifdf> 90, the distribution is _____________. Ifdf= 15, the distribution is ________________.
Subject: chemistry
Question: Predict the products of oxidizing the molecules shown in this problem. In each case, identify the product that will result from the minimal increase in oxidation state for the highlighted carbon atom: (a)   (b)   (c)
Subject: chemistry
Question: For each of the following molecules, indicate the hybridization requested and whether or not the electrons will be delocalized: (a) ozone (O3) central O hybridization (b) carbon dioxide (CO2) central C hybridization (c) nitrogen dioxide (NO2) central N hybridization (d) phosphate ion(PO43−)(PO43−)central P hybridization
Subject: psychology
Question: Neural stem cells have the potential to develop into which two primary cell types in the nervous system?
Subject: astronomy
Question: Earth’s atmosphere is in hydrostatic equilibrium. What this means is that the pressure at any point in the atmosphere must be high enough to support the weight of air above it. How would you expect the pressure on Mt. Everest to differ from the pressure in your classroom? Explain why.
Subject: biology
Question: Why are carnivores, such as lions, dependent on photosynthesis to survive?
Subject: business
Question: [LO 2.2](2-2-identify-and-apply-basic-cost-behavior-patterns) Identify and describe the three types of product costs in a manufacturing firm.
Subject: mathematics
Question: For her birthday, Olive’s grandparents bought her a new widescreen TV. Before opening it she wants to make sure it will fit her entertainment center. The TV is 55”. The size of a TV is measured on the diagonal of the screen and a widescreen has a length that is larger than the width. The screen also has an area of 1452 square inches. Her entertainment center has an insert for the TV with a length of 50 inches and width of 40 inches. What are the length and width of the TV screen and will it fit Olive’s entertainment center?
Subject: business
Question: [LO 7.3](7-3-analyze-and-journalize-transactions-using-special-journals) You just posted a debit to Cash in the general ledger. Which special journal did it come from?    A. sales journal   B. cash receipts journal   C. purchases journal   D. cash disbursements journal   E. general journal
Subject: biology
Question: The rate of discovery of antimicrobial drugs has decreased significantly in recent decades.
Subject: mathematics
Question: {(3 - 5i)}^{2}
Subject: business
Question: What are the similarities and differences between the business ventures of Wander Girls and Roxanne Quimby?
Subject: chemistry
Question: Balance the following equations: (a) \text{PCl}_{5}(s) + \text{H}_{2}\text{O}(l)\ \longrightarrow\ \text{POCl}_{3}(l) + \text{HCl}(aq) (b) \text{Cu}(s) + \text{HNO}_{3}(aq)\ \longrightarrow\ \text{Cu}{(\text{NO}_{3})}_{2}(aq) + \text{H}_{2}\text{O}(l) + \text{NO}(g) (c) \text{H}_{2}(g) + \text{I}_{2}(s)\ \longrightarrow\ \text{HI}(s) (d) \text{Fe}(s) + \text{O}_{2}(g)\ \longrightarrow\ \text{Fe}_{2}\text{O}_{3}(s) (e) \text{Na}(s) + \text{H}_{2}\text{O}(l)\ \longrightarrow\ \text{NaOH}{({aq})} + \text{H}_{2}(g) (f) (\text{NH}_{4})_{2}\text{Cr}_{2}\text{O}_{7}(s)\ \longrightarrow\ \text{Cr}_{2}\text{O}_{3}(s) + \text{N}_{2}(g) + \text{H}_{2}\text{O}(g) (g) \text{P}_{4}(s) + \text{Cl}_{2}(g)\ \longrightarrow\ \text{PCl}_{3}(l) (h) \text{PtCl}_{4}(s)\ \longrightarrow\ \text{Pt}{(s)} + \text{Cl}_{2}(g)
Subject: political_science
Question: Why do House members and senators tend to be less active on foreign policy matters than domestic ones?    A. Foreign policy matters are more technical and difficult.   B. Legislators do not want to offend certain immigrant groups within their constituency.   C. Constituents are more directly affected by domestic policy topics than foreign ones.   D. Legislators themselves are not interested in foreign policy matters.
Subject: business
Question: [LO 8.3](8-3-compute-and-evaluate-labor-variances) What are some possible causes of a direct labor rate variance?
Subject: history
Question: Why did the Second Bank of the United States make such an inviting target for President Jackson?
Subject: mathematics
Question: \left( {-2,5} \right)\left( {4,-1} \right)
Subject: sociology
Question: Members of a counterculture movement believed that the economic disparity between the highest and the mid to lower economic classes is growing at an exponentially alarming rate. A sociologist who studies that movement by examining the interactions between its members would most likely use what theoretical approach?
Subject: physics
Question: Part of the light passing through the air is scattered in all directions by the molecules comprising the atmosphere. The wavelengths of visible light are larger than molecular sizes, and the scattering is strongest for wavelengths of light closest to sizes of molecules.   (a) Which of the main colors of light is scattered the most? (b) Explain why this would give the sky its familiar background color at midday.
Subject: mathematics
Question: x^{-3}x^{4}
Subject: physics
Question: A 2.0-kg block is on a perfectly smooth ramp that makes an angle of 30\text{°} with the horizontal. (a) What is the block’s acceleration down the ramp and the force of the ramp on the block? (b) What force applied upward along and parallel to the ramp would allow the block to move with constant velocity?
Subject: mathematics
Question: \frac{15}{20}
Subject: political_science
Question: The termmedia oligopoliesrefers to:
Subject: mathematics
Question: Create the multiplication table for base 7.
Subject: mathematics
Question: Use the formula F = \frac{9}{5}C + 32 to convert 35\text{°C} to degrees \text{F}
Subject: physics
Question: How does a scientific law compare to a local law, such as that governing parking at your school, in terms of whether or not laws can be changed, and how universal a law is?
Subject: chemistry
Question: From the molar heats of formation in [Appendix G](g-standard-thermodynamic- properties-for-selected-substances) , determine how much heat is required to evaporate one mole of water: \text{H}_{2}\text{O}(l)\ \longrightarrow\ \text{H}_{2}\text{O}(g)
Subject: biology
Question: Match each polysaccharide with its description.  ___chitin | A. energy storage polymer in plants   ---|---   ___glycogen | B. structural polymer found in plants   ___starch | C. structural polymer found in cell walls of fungi and exoskeletons of some animals   ___cellulose | D. energy storage polymer found in animal cells and bacteria
Subject: physics
Question: A car of mass 1000.0 kg is traveling along a level road at 100.0 km/h when its brakes are applied. Calculate the stopping distance if the coefficient of kinetic friction of the tires is 0.ȴ. Neglect air resistance. ( _Hint:_ since the distance traveled is of interest rather than the time, _x_ is the desired independent variable and not _t_ . Use the Chain Rule to change the variable: \frac{dv}{dt} = \frac{dv}{dx}\ \frac{dx}{dt} = v\frac{dv}{dx}.)
Subject: sociology
Question: The removal of homosexuality from theDSMis an example of ____________.
Subject: physics
Question: A small ball of mass 0.50 kg is attached by a massless string to a vertical rod that is spinning as shown below. When the rod has an angular velocity of 6.0 rad/s, the string makes an angle of 30\text{°} with respect to the vertical. (a) If the angular velocity is increased to 10.0 rad/s, what is the new angle of the string? (b) Calculate the initial and final angular momenta of the ball. (c) Can the rod spin fast enough so that the ball is horizontal?
Subject: computer_science
Question: In cloud-centric solutions for cybersecurity, the Cloud Security Alliance regards encryption as the most important control to secure data in the cloud. Based on your knowledge of encryption, why is encryption so important for cloud cybersecurity?
Subject: physics
Question: Referring to the example combining series and parallel circuits and [Figure 21.6](21-1-resistors-in-series-and-parallel) , calculate I_{3}{} in the following two different ways: (a) from the known values of I and I_{2}{} ; (b) using Ohm’s law for R_{3}{} . In both parts explicitly show how you follow the steps in the [Problem-Solving Strategies for Series and Parallel Resistors](21-1-resistors-in-series-and-parallel) .
Subject: physics
Question: What are the largest and smallest resistances you can obtain by connecting a 36.0\text{-}\text{Ω} , a 50.0\text{-}\text{Ω} , and a 700\text{-}\text{Ω} resistor together?
Subject: chemistry
Question: Write Lewis structures for the following: (a) SeF 6 (b) XeF 4 (c) \text{SeCl}_{3}{}^{+} (d) Cl 2 BBCl 2 (contains a B–B bond)
Subject: psychology
Question: What are some of the physical effects of grief and why do they occur?
Subject: political_science
Question: A referendum is not purely direct democracy because the ________.
Subject: business
Question: If you could open a business right now, what would it be? Who would be your target market?
Subject: sociology
Question: Occupational prestige means that jobs are:    A. all equal in status   B. not equally valued   C. assigned to a person for life   D. not part of a person’s self-identity
Subject: mathematics
Question: Write an equation for the piecewise function.
Subject: mathematics
Question: 64j^{2} + 225
Subject: business
Question: [LO 2.3](2-3-prepare-an-income-statement-statement-of-owners-equity-and- balance-sheet) Working capital is an indication of the firm’s ________.    A. asset utilization   B. amount of noncurrent liabilities   C. liquidity   D. amount of noncurrent assets
Subject: computer_science
Question: How does the “opening the door to third parties” approach contribute to digital innovation, as exemplified by Gojek?
Subject: psychology
Question: Which trend in intelligence scores is described by the Flynn effect?
Subject: sociology
Question: Which of the following societies were the first to have permanent residents?    A. Industrial   B. Hunter-gatherer   C. Horticultural   D. Feudal
Subject: mathematics
Question: \csc^{2}x - 3\;\csc\; x - 4 = 0
Subject: mathematics
Question: A Ferris wheel car is moving at a constant speedvvand has a constant radiusr.r.Find the tangential and normal acceleration of the Ferris wheel car.
Subject: chemistry
Question: Joseph Priestley first prepared pure oxygen by heating mercuric oxide, HgO:2HgO(s)⟶2Hg(l)+O2(g)2HgO(s)⟶2Hg(l)+O2(g) (a) Outline the steps necessary to answer the following question: What volume of O2at 23 °C and 0.975 atm is produced by the decomposition of 5.36 g of HgO? (b) Answer the question.
Subject: biology
Question: To an alga, what is the main advantage of producing drought-resistant structures?
Subject: economics
Question: What is a labor union?
Subject: sociology
Question: Organic solidarity is most likely to exist in which of the following types of societies?
Subject: chemistry
Question: Using the data inAppendix G, calculate the standard enthalpy change for each of the following reactions: (a)Si(s)+2F2(g)⟶SiF4(g)Si(s)+2F2(g)⟶SiF4(g) (b)2C(s)+2H2(g)+O2(g)⟶CH3CO2H(l)2C(s)+2H2(g)+O2(g)⟶CH3CO2H(l) (c)CH4(g)+N2(g)⟶HCN(g)+NH3(g);CH4(g)+N2(g)⟶HCN(g)+NH3(g); (d)CS2(g)+3Cl2(g)⟶CCl4(g)+S2Cl2(g)CS2(g)+3Cl2(g)⟶CCl4(g)+S2Cl2(g)
Subject: sociology
Question: Which founder of sociology believed societies changed due to class struggle?
Subject: anthropology
Question: Of Weber’s three forms of authority, which ones can you identify in your own society? How do these forms of authority interact?
Subject: physics
Question: (a) What is the potential difference going from point a to point b inFigure 21.45? (b) What is the potential difference going from c to b? (c) From e to g? (d) From e to d?
Subject: psychology
Question: What combination of parent hair type would most likely result in a child’s having wavy hair?
Subject: physics
Question: The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm apart. The system is in a uniform magnetic field of strength 0.75 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25\ \text{Ω} . (a) What is the emf (including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? (b) What force is required to keep the rod moving at this speed? (c) What is the rate at which work is done by this force? (d) What is the power dissipated in the resistor?
Subject: chemistry
Question: D5W is a solution used as an intravenous fluid. It is a 5.0% by mass solution of dextrose (C 6 H 12 O 6 ) in water. If the density of D5W is 1.029 g/mL, calculate the molarity of dextrose in the solution.
Subject: physics
Question: You leave a pastry in the refrigerator on a plate and ask your roommate to take it out before you get home so you can eat it at room temperature, the way you like it. Instead, your roommate plays video games for hours. When you return, you notice that the pastry is still cold, but the game console has become hot. Annoyed, and knowing that the pastry will not be good if it is microwaved, you warm up the pastry by unplugging the console and putting it in a clean trash bag (which acts as a perfect calorimeter) with the pastry on the plate. After a while, you find that the equilibrium temperature is a nice, warm 38.3\ \text{°}\text{C} . You know that the game console has a mass of 2.1 kg. Approximate it as having a uniform initial temperature of 45\ \text{°}\text{C} . The pastry has a mass of 0.16 kg and a specific heat of 3.0\ \text{k}\ \text{J/}(\text{kg} \cdot \text{ºC}), and is at a uniform initial temperature of 4.0\ \text{°}\text{C} . The plate is at the same temperature and has a mass of 0.24 kg and a specific heat of 0.90\ \text{kJ/}(\text{kg} \cdot \text{ºC}) . What is the specific heat of the console?
Subject: chemistry
Question: How many milliliters of a 0.1500- _M_ solution of KOH will be required to titrate 40.00 mL of a 0.0656- _M_ solution of H 3 PO 4 ?   \text{H}_{3}\text{PO}_{4}(aq) + 2\text{KOH}{({aq})}\ \longrightarrow\ \text{K}_{2}\text{HPO}_{4}(aq) + 2\text{H}_{2}\text{O}{(l)}
Subject: physics
Question: Suppose light were incident from air onto a material that had a negative index of refraction, say –1.3; where does the refracted light ray go?
Subject: biology
Question: The production of megaphylls by many different species of plants is an example of _____.
Subject: physics
Question: An artificial satellite orbits the Earth at a distance of 1.45×104km from Earth’s center. The moon orbits the Earth at a distance of 3.84×105km once every 27.3 days. How long does it take the satellite to orbit the Earth?
Subject: physics
Question: Verify that the total number of nucleons, and total charge are conserved for each of the following fusion reactions in the proton-proton chain. (i) {}^{1}\text{H} + {}^{1}\text{H}\rightarrow{}^{2}\text{H} + e^{+} + v_{\text{e}} , (ii) {}^{1}\text{H} + {}^{2}\text{H}\rightarrow{}^{3}\text{H}\text{e}\ + \gamma , and (iii) {}^{3}\text{H}\text{e}\ + {}^{3}\text{H}\text{e}\rightarrow{}^{4}\text{H}\text{e} + {}^{1}\text{H} + {}^{1}\text{H} . (List the value of each of the conserved quantities before and after each of the reactions.)
Subject: physics
Question: A singly charged ion takes 2.0\ \times \ 10^{-3}\text{s} to complete eight revolutions in a uniform magnetic field of magnitude 2.0\ \times \ 10^{-2}\text{T}. What is the mass of the ion?
Subject: physics
Question: At the top of Earth’s atmosphere, the time-averaged Poynting vector associated with sunlight has a magnitude of about 1.4\ \text{kW/m}^{2}.   (a) What are the maximum values of the electric and magnetic fields for a wave of this intensity? (b) What is the total power radiated by the sun? Assume that the Earth is 1.5\ \times \ 10^{11}\text{m} from the Sun and that sunlight is composed of electromagnetic plane waves.
Subject: biology
Question: Which muscles form the hamstrings? How do they function together?
Subject: chemistry
Question: Ethylene, C 2 H 4 , a byproduct from the fractional distillation of petroleum, is fourth among the 50 chemical compounds produced commercially in the largest quantities. About 80% of synthetic ethanol is manufactured from ethylene by its reaction with water in the presence of a suitable catalyst. \text{C}_{2}\text{H}_{4}(g) + \text{H}_{2}\text{O}(g)\ \longrightarrow\ \text{C}_{2}\text{H}_{5}\text{OH}(l) Using the data in the table in [Appendix G](g-standard-thermodynamic-properties-for-selected-substances) , calculate Δ _H_ ° for the reaction.
Subject: physics
Question: Does a car’s odometer measure distance traveled or displacement? Does its speedometer measure speed or velocity?
Subject: economics
Question: What are typical GDP patterns for a high-income economy like the United States in the long run and the short run?
Subject: business
Question: [LO 10.1](10-1-describe-and-demonstrate-the-basic-inventory-valuation-methods- and-their-cost-flow-assumptions) What is meant by the term _gross margin_ ?
Subject: mathematics
Question: Priam has dimes and pennies in a cup holder in his car. The total value of the coins is $4.U. The number of dimes is three less than four times the number of pennies. How many dimes and how many pennies are in the cup?
Subject: philosophy
Question: What is moral relativism?
Subject: physics
Question: During a 4th of July celebration, an M80 firework explodes on the ground, producing a bright flash and a loud bang. The air temperature of the night air is T_{\text{F}} = 95.00\text{°}\text{F}. Two observers see the flash and hear the bang. The first observer notes the time between the flash and the bang as 0.10 second. The second observer notes the difference as 0.15 seconds. The line of sight between the two observers meet at a right angle as shown below. What is the distance \text{Δ}x between the two observers?
Subject: business
Question: [LO 7.4](7-4-prepare-flexible-budgets) What information is included in the capital asset budget?
Subject: mathematics
Question: \frac{z^{\frac{2}{3}} \cdot z^{- \frac{1}{3}}}{z^{- \frac{5}{3}}}
Subject: mathematics
Question: 5x = 3y - 12
Subject: mathematics
Question: On average (μ), how many would you expect to answer yes?
Subject: psychology
Question: Stress-induced activation of the immune system happens in response to which?
Subject: business
Question: LO12.2What would be wrong with using two points of data in a performance measurement system to tell a company whether the amount of variation is normal or abnormal?
Subject: biology
Question: What is the largest muscle in the lower leg?
Subject: nursing
Question: A client has been prescribed an ocular antiviral, trifluridine, for ocular herpes. The nurse instructs the client to seek immediate treatment if they experience which condition?
Subject: nursing
Question: A client tells the clinic nurse that after administering timolol drops in their right eye, they noticed that their heart rate decreased to 50 beats per minute. Which question by the nurse best determines the most likely cause of bradycardia?
Subject: history
Question: What were President Carter’s successes in the area of foreign policy?
Subject: biology
Question: Describe the two-stage lifecycle of plants: the gametophyte stage and the sporophyte stage.
Subject: biology
Question: What neurotransmitter is released at the neuromuscular junction?
Subject: biology
Question: While assembling a skeleton of a new species, a scientist points to one of the bones and observes that it looks like the most likely site of leg muscle attachment. What kind of bone did she indicate?
Subject: chemistry
Question: Which molecule has a molecular mass of 28.05 amu? (a) (b) (c)
Subject: mathematics
Question: \frac{3y}{y + 2} - \frac{y + 2}{y + 8}
Subject: business
Question: What are the pitfalls in crafting a vision statement that is too broad or too narrow?
Subject: biology
Question: Triglycerides are transported by chylomicrons because ________.
Subject: biology
Question: Which of the following describes lipids?    A. a source of nutrients for organisms   B. energy-storage molecules   C. molecules having structural role in membranes   D. molecules that are part of hormones and pigments   E. all of the above
Subject: mathematics
Question: Does the equation y = 2.294e^{- 0.654t} represent continuous growth, continuous decay, or neither? Explain.
Subject: sociology
Question: Sociologists associate sexuality with _______.
Subject: biology
Question: Hematopoiesis occurs in which of the following?    A. liver   B. bone marrow   C. kidneys   D. central nervous system
Subject: economics
Question: The rows in [Table 12.7](12-self-check-questions#Table_12_09) show three market-oriented tools for reducing pollution. The columns of the table show three complaints about command-and-control regulation. Fill in the table by stating briefly how each market-oriented tool addresses each of the three concerns.  | Incentives to Go Beyond | Flexibility about Where and How Pollution Will Be Reduced | Political Process Creates Loopholes and Exceptions   ---|---|---|---   Pollution Charges |  |  |    Marketable Permits |  |  |    Property Rights |  |  |    Table 12.7
Subject: biology
Question: Endochondral ossification is ________.
Subject: mathematics
Question: List all the multiples of 4 that are less than 50.
Subject: biology
Question: Which type of reflex is the jaw-jerk reflex that is part of the cranial nerve exam for the vestibulocochlear nerve?
Subject: physics
Question: What is grounding? What effect does it have on a charged conductor? On a charged insulator?
Subject: chemistry
Question: Describe the crystal structure of iron, which crystallizes with two equivalent metal atoms in a cubic unit cell.
Subject: business
Question: How does a joint venture differ from the other business structures?
Subject: chemistry
Question: Based on their positions in the periodic table, predict which has the largest atomic radius: Li, Rb, N, F, I.
Subject: psychology
Question: Compare and contrast individual and group therapies.
Subject: astronomy
Question: Use the diagram you have drawn forExercise 18.25to answer the following questions: Which star is more massive—Sirius or Alpha Centauri? Rigel and Regulus have nearly the same spectral type. Which is larger? Rigel and Betelgeuse have nearly the same luminosity. Which is larger? Which is redder?
Subject: mathematics
Question: Three less than _c_ is at least 360.
Subject: biology
Question: The majority of carbon dioxide in the blood is transported by ________.
Subject: astronomy
Question: The 21-cm line can be used not just to find out where hydrogen is located in the sky, but also to determine how fast it is moving toward or away from us. Describe how this might work.
Subject: mathematics
Question: Sergio weighed 2.9 kilograms at birth. Convert this to grams.
Subject: psychology
Question: What is the term used for a living situation that is comprised of grandparents and their grandchildren who are under twenty-five-years-old?
Subject: physics
Question: What is the dose in mSv for: (a) a 0.1 Gy x-ray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of \alpha exposure?
Subject: political_science
Question: What is the difference between a representative democracy and a direct democracy?
Subject: astronomy
Question: Suppose you were designing a spacecraft that would match course with an asteroid and follow along its orbit. What sorts of instruments would you put on board to gather data, and what would you like to learn?
Subject: philosophy
Question: What is global skepticism?
Subject: political_science
Question: Which of the following is not a reason that committees are formed in legislatures?
Subject: chemistry
Question: A cylinder of a gas mixture used for calibration of blood gas analyzers in medical laboratories contains 5.0% CO2, 12.0% O2, and the remainder N2at a total pressure of 146 atm. What is the partial pressure of each component of this gas? (The percentages given indicate the percent of the total pressure that is due to each component.)
Subject: biology
Question: How is a clumped population distribution beneficial for prey animals?
Subject: physics
Question: Do standing waves explain why electron orbitals are quantized?
Subject: mathematics
Question: \sqrt{121c^{2}d^{2}}
Subject: mathematics
Question: Find the length of the missing side.
Subject: economics
Question: Would you expect the kinked demand curve to be more extreme (like a right angle) or less extreme (like a normal demand curve) if each firm in the cartel produces a near-identical product like OPEC and petroleum? What if each firm produces a somewhat different product? Explain your reasoning.