mouryat9/CogBench huggingface dataset:
Subject: physics
Question: Two objects having equal masses and speeds collide with each other and come to a rest. Is momentum conserved in this case?
Subject: biology
Question: Research the life of Jan Babtista van Helmont. What did the van Helmont experiment show?
Subject: mathematics
Question: Determine whether the algebraic equation is linear. 2x + 3y = 7
Subject: physics
Question: A fellow student calculated the flux through the square for the system in the preceding problem and got @. What went wrong?
Subject: physics
Question: A Formula One race car is traveling at 89.0 m/s along a straight track enters a turn on the race track with radius of curvature of 200.0 m. What centripetal acceleration must the car have to stay on the track?
Subject: mathematics
Question: What is the sum of the measures of the exterior angles of a regular heptagon?
Subject: physics
Question: Integrated Concepts Particles called muons exist in cosmic rays and can be created in particle accelerators. Muons are very similar to electrons, having the same charge and spin, but they have a mass 207 times greater. When muons are captured by an atom, they orbit just like an electron but with a smaller radius, since the mass in {{a_{\text{B}} = \frac{h^{2}}{4\pi^{2}m_{e}\text{kq}_{e}^{2}}} = \text{0.529} \times \text{10}^{- \text{10}}\ }\text{m} is 207 m_{e} .(a) Calculate the radius of the n = 1 orbit for a muon in a uranium ion ( Z = \text{92} ). (b) Compare this with the 7.5-fm radius of a uranium nucleus. Note that since the muon orbits inside the electron, it falls into a hydrogen-like orbit. Since your answer is less than the radius of the nucleus, you can see that the photons emitted as the muon falls into its lowest orbit can give information about the nucleus.
Subject: physics
Question: A string of length 5 m and a mass of 90 g is held under a tension of 100 N. A wave travels down the string that is modeled as y\left( {x,t} \right) = 0.01\ \text{m}\ \text{sin}\left( {15.7\ \text{m}^{-1}x - 1170.12\ \text{s}^{-1}t} \right). What is the power over one wavelength?
Subject: biology
Question: A(n) _______ is an uncontrolled positive feedback loop between cytokines and leucocytes.
Subject: business
Question: Compare and contrast common law systems vs. civil law systems.
Subject: astronomy
Question: Why is a higher temperature required to fuse hydrogen to helium by means of the CNO cycle than is required by the process that occurs in the Sun, which involves only isotopes of hydrogen and helium?
Subject: business
Question: LO4.1Burnham Industries incurs these costs for the month: What is the prime cost?
Subject: mathematics
Question: Using the data in“MBB2019”, find the range and standard deviation of the number of free throws made by each team (FT).
Subject: biology
Question: Which species is not associated with NGU?    A. _Neisseria gonorrhoeae_   B. _Mycoplasma hominis_   C. _Chlamydia trachomatis_   D. _Mycoplasma genitalium_
Subject: economics
Question: Table 14.11shows levels of employment (Labor), the marginal product at each of those levels, and a monopoly’s marginal revenue. LaborMarginal Product of LaborPrice of the Product110$1028$737$545$453$261$1Table14.11
Subject: history
Question: Explain how the 1920s was a decade of contradictions. What does the relationship between mass immigration and the rise of the Second Ku Klux Klan tell us about American attitudes? How might we reconcile the decade as the period of both the flapper and prohibition?
Subject: chemistry
Question: Balance each of the following equations according to the half-reaction method: (a)Zn(s)+NO3−(aq)⟶Zn2+(aq)+N2(g)(in acid)Zn(s)+NO3−(aq)⟶Zn2+(aq)+N2(g)(in acid) (b)Zn(s)+NO3−(aq)⟶Zn2+(aq)+NH3(aq)(in base)Zn(s)+NO3−(aq)⟶Zn2+(aq)+NH3(aq)(in base) (c)CuS(s)+NO3−(aq)⟶Cu2+(aq)+S(s)+NO(g)(in acid)CuS(s)+NO3−(aq)⟶Cu2+(aq)+S(s)+NO(g)(in acid) (d)NH3(aq)+O2(g)⟶NO2(g)(gas phase)NH3(aq)+O2(g)⟶NO2(g)(gas phase) (e)H2O2(aq)+MnO4−(aq)⟶Mn2+(aq)+O2(g)(in acid)H2O2(aq)+MnO4−(aq)⟶Mn2+(aq)+O2(g)(in acid) (f)NO2(g)⟶NO3−(aq)+NO2−(aq)(in base)NO2(g)⟶NO3−(aq)+NO2−(aq)(in base) (g)Fe3+(aq)+I−(aq)⟶Fe2+(aq)+I2(aq)Fe3+(aq)+I−(aq)⟶Fe2+(aq)+I2(aq)
Subject: psychology
Question: Multiple sclerosis involves a breakdown of the ________.
Subject: political_science
Question: Under what conditions will presidents use direct action? When might they prefer passing a formal policy through Congress as a bill?
Subject: business
Question: Pick one product that you would find at a grocery store, a mass merchandiser, and a convenience store. Now go to each of these stores and check the price of the product you selected. Note if the product is on sale or listed at its regular price.Are the prices consistent? Is one store higher or lower across the board? What would compel a consumer to pay higher prices for products when they can purchase them at a lower price?
Subject: economics
Question: Based on the theory of rational ignorance, what should we expect to happen to voter turnout as the internet makes information easier to obtain?
Subject: psychology
Question: Sandeep has faced many challenges recently, including the death of his spouse, a serious medical scare, and some financial stress. He still functions at a very high level, has just secured a part-time job to help with finances, is active with friends and family, and has a positive outlook on life. What does Sandeep clearly have a lot of?
Subject: anthropology
Question: Why should food deserts concern everyone in a society?
Subject: physics
Question: The circular conducting loops shown in the accompanying figure are parallel, perpendicular to the plane of the page, and coaxial. (a) When the switch S is closed, what is the direction of the current induced in _D_ ? (b) When the switch is opened, what is the direction of the current induced in loop _D_ ?
Subject: psychology
Question: What is the minimum amount of time addicts should receive treatment if they are to achieve a desired outcome?
Subject: mathematics
Question: y\text{''} - 2y^{\prime} + 10y = 4x
Subject: chemistry
Question: Barium crystallizes in a body-centered cubic unit cell with an edge length of 5.025 Ã (a) What is the atomic radius of barium in this structure? (b) Calculate the density of barium.
Subject: biology
Question: Imagine the Meselson and Stahl experiments had supported conservative replication instead of semi-conservative replication. What results would you predict to observe after two rounds of replication? Be specific regarding percent distributions of DNA incorporating15N and14N in the gradient.
Subject: mathematics
Question: The symmetric equation for the line of intersection between two planesx+y+z=2x+y+z=2andx+2y−4z=5x+2y−4z=5is given by−x−16=y−15=z.−x−16=y−15=z.
Subject: physics
Question: Which formula may be used for the momentum of all particles, with or without mass?
Subject: political_science
Question: ________ dictate the terms and conditions state governments would have to meet in order to qualify for financial assistance in a specific policy area.    A. Categorical grants   B. Block grants   C. Unfunded mandates   D. Crossover sanctions
Subject: economics
Question: Does a price floor attempt to make a price higher or lower?
Subject: business
Question: Who decides the business ethics for a company?
Subject: business
Question: What are the different components of a feasibility analysis?
Subject: biology
Question: The principal force driving movement in diffusion is __________.
Subject: physics
Question: A dog would have a hard time stalking and catching a red bird hiding in a field of green grass. Explain this in terms of cone cells and color perception.
Subject: physics
Question: Integrated Concepts Heat transfers from your lungs and breathing passages by evaporating water. (a) Calculate the maximum number of grams of water that can be evaporated when you inhale 1.50 L of 37º\text{C} air with an original relative humidity of 40.0%. (Assume that body temperature is also 37º\text{C} .) (b) How many joules of energy are required to evaporate this amount? (c) What is the rate of heat transfer in watts from this method, if you breathe at a normal resting rate of 10.0 breaths per minute?
Subject: computer_science
Question: What is a true statement about UI and UE?
Subject: mathematics
Question: \cos\left( {4x} \right) - \cos\left( {3x} \right)\cos x = \sin^{2}x - 4\mspace{9mu}\cos^{2}x\;\sin^{2}x
Subject: mathematics
Question: \frac{v^{12}}{v^{48}}
Subject: mathematics
Question: a_{1} = 128 and r = \frac{1}{4}
Subject: biology
Question: Exposure to air is necessary for microbial growth.
Subject: anthropology
Question: What are the advantages and disadvantages of living in a state society? Which groups benefit most? Which groups benefit least? What can those groups do to improve their situation?
Subject: political_science
Question: Under consecutive term limits, legislators can serve one time for the number of years allotted and are not permitted to ever compete for the office again. TrueFalse
Subject: history
Question: The House of Representatives impeached Andrew Johnson over ________. the Civil Rights Actthe Fourteenth Amendmentthe Military Reconstruction Actthe Tenure of Office Act
Subject: physics
Question: If some unknown cause of the red shift, such as light becomingtiredfrom traveling long distances through empty space, is discovered, what effect would there be on cosmology?
Subject: psychology
Question: Explain how cultural factors can shape the experience of emerging adulthood, particularly in the process of identity formation. Consider the differences between individualistic and collectivistic cultures, as well as the impact of globalization on cultural values and identity exploration. Provide examples to illustrate how culture can influence the challenges and opportunities faced during this period.
Subject: political_science
Question: Which statement about the evolution of same-sex marriage isfalse?
Subject: physics
Question: You have a mass of 55 kg as measured by your bathroom scale, which is calibrated for Earth’s gravity. You take the scale with you from Earth to a moon of Jupiter. When you weigh yourself at your destination, you appear to weigh only 6.9 kg. What is the acceleration due to gravity on this moon?
Subject: business
Question: [LO 13.3](13-3-prepare-journal-entries-to-reflect-the-life-cycle-of-bonds) Naval Inc. issued $200,000 face value bonds at a discount and received $190,@. At the end of 2018, the balance in the Discount on Bonds Payable account is $5,@. This year’s balance sheet will show a net liability of ________.    A. $200,000   B. $180,000   C. $195,000   D. $205,000
Subject: mathematics
Question: (n−1)!,n=12
Subject: physics
Question: Critical Thinking A photon of light with a wavelength of 550.0 nm is involved in a collision with an electron. Use 6.63 \times 10^{-34}\text{m}^{2}\ \text{kg/s} for Planck’s constant. (a) How much momentum does the photon have before the collision? (b) If the wavelength of the photon leaving the collision is 650.0 nm, how much momentum does the photon have? (c) Does the momentum have to be conserved in every direction? (d) Does a longer wavelength imply more or less momentum than a shorter wavelength?
Subject: psychology
Question: The precursor molecule representing partial production of dopamine as it is derived from the amino acid tyrosine, which is given to Parkinson’s patients because, unlike dopamine, it can cross the blood-brain barrier, is called ________.
Subject: chemistry
Question: Write two complete, balanced equations for each of the following reactions, one using condensed formulas and one using Lewis structures. Ethylammonium chloride is added to a solution of sodium hydroxide.
Subject: astronomy
Question: Compare the geology of Callisto, Ganymede, and Titan.
Subject: chemistry
Question: InFigure 16.8all possible distributions and microstates are shown for four different particles shared between two boxes. Determine the entropy change, ΔS, if the particles are initially evenly distributed between the two boxes, but upon redistribution all end up in Box (b).
Subject: business
Question: LO1.1How do the subject matter of reports and the verification of reports differ between financial accounting and managerial accounting?
Subject: biology
Question: Which fermentation product is important for making bread rise?    A. ethanol   B. CO2   C. lactic acid   D. hydrogen gas
Subject: nursing
Question: A nursing student asks the nurse how impetigo treatment works. The nurse explains that the primary goal in the treatment of impetigo is to:
Subject: physics
Question: A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0\text{.}\text{700}\text{~rad/s}^{2} .(a) How long does it take to come to rest? (b) How many revolutions does it make before stopping?
Subject: sociology
Question: Which sociological perspective most emphasizes the ways in which religion helps to maintain social inequalities within a society?
Subject: physics
Question: Which of the following always has the greatest value in a system having 80 percent thermal efficiency?
Subject: business
Question: LO7.5Forensic means “suitable for use in a court of law.” How does that have anything to do with accounting?
Subject: astronomy
Question: Write out Newton’s three laws of motion in terms of what happens with the momentum of objects.
Subject: physics
Question: A 2.50-m segment of wire supplying current to the motor of a submerged submarine carries 1000 A and feels a 4.00-N repulsive force from a parallel wire 5.00 cm away. What is the direction and magnitude of the current in the other wire?
Subject: biology
Question: Which situation is most likely an example of convergent evolution?
Subject: chemistry
Question: Which of the following compounds requires the most energy to convert one mole of the solid into separate ions? (a) K2S (b) K2O (c) CaS (d) Cs2S (e) CaO
Subject: physics
Question: A gyroscope has a 0.5-kg disk that spins at 40 rev/s. The center of mass of the disk is 15 cm from a pivot with a radius of the disk of 10 cm. What is the precession angular velocity?
Subject: philosophy
Question: What is the general structure of a dialectic?
Subject: biology
Question: The cardiovascular center is responsible for regulating the heart and blood vessels through homeostatic mechanisms. What tone does each component of the cardiovascular system have? What connections does the cardiovascular center invoke to keep these two systems in their resting tone?
Subject: physics
Question: Integrated Concepts (a) Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 750-kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 2.00 \times \text{10}^{\text{2}}\text{-m} -high hill in 2.00 min at a constant 25.0-m/s speed while exerting 5.00 \times \text{10}^{\text{2}}\ \text{N} of force to overcome air resistance and friction? (c) To travel at a constant 25.0-m/s speed, exerting a 5.00 \times \text{10}^{\text{2}}\ \text{N} force to overcome air resistance and friction? See [Figure 20.40](20-problems-exercises#eip-id2454955) .  Figure 20.40 This REVAi, an electric car, gets recharged on a street in London. (credit: Frank Hebbert)
Subject: chemistry
Question: Toothpastes containing sodium hydrogen carbonate (sodium bicarbonate) and hydrogen peroxide are widely used. Write Lewis structures for the hydrogen carbonate ion and hydrogen peroxide molecule, with resonance forms where appropriate.
Subject: physics
Question: Most objects contain incredibly large numbers of charged particles. Why do most objects not exhibit static electric effects?
Subject: business
Question: LO3.1Mariana Manufacturing and Bellow Brothers compete in the same industry and in all respects their products are virtually identical. However, most of Mariana’s costs are fixed while Bellow’s costs are primarily variable. If sales increase for both companies, which will realize the greatest increase in profits? Why?
Subject: physics
Question: Does a bat make use of the properties of sound waves to locate its prey?
Subject: political_science
Question: Which of these is not a way in which governments attempt to secure legitimacy?
Subject: political_science
Question: Negative ads:
Subject: sociology
Question: A sect:    A. has generally grown so large that it needs new buildings and multiple leaders    B. often believes it must split from the larger group to return to important fundamentals   C. is another term for a cult   D. All of the above
Subject: sociology
Question: Which event created a significant divide between Western Europe/America and the rest of the world?    A. The Industrial Revolution   B. The American Revolution   C. The Reformation   D. World War I
Subject: biology
Question: A single antigen molecule may be composed of many individual ________.    A. T-cell receptors   B. B-cell receptors   C. MHC II   D. epitopes
Subject: sociology
Question: Which of the following fictional societies is an example of a pastoral society?    A. The Deswan people, who live in small tribes and base their economy on the production and trade of textiles   B. The Rositian Clan, a small community of farmers who have lived on their family’s land for centuries   C. The Hunti, a wandering group of nomads who specialize in breeding and training horses   D. The Amaganda, an extended family of warriors who serve a single noble family
Subject: physics
Question: A projectile of mass 2.0 kg is ﬁred in the air at an angle of 40.0 \text{°} to the horizon at a speed of 50.0 m/s. At the highest point in its flight, the projectile breaks into three parts of mass 1.0 kg, 0.7 kg, and 0.3 kg. The 1.0-kg part falls straight down after breakup with an initial speed of 10.0 m/s, the 0.7-kg part moves in the original forward direction, and the 0.3-kg part goes straight up.    A. Find the speeds of the 0.3-kg and 0.7-kg pieces immediately after the break-up.   B. How high from the break-up point does the 0.3-kg piece go before coming to rest?   C. Where does the 0.7-kg piece land relative to where it was ﬁred from?
Subject: physics
Question: What is the force on the charge _q_ at the lower-right-hand corner of the square shown here?
Subject: nursing
Question: The nurse is caring for a client wearing a neck brace. The client reports the provider informed them that their “neck fracture” may cause some nerve disturbances. Which region of the spinal cord is involved?
Subject: physics
Question: A certain ammeter has a resistance of 5\text{.}\text{00}\times\text{10}^{- 5}\ \Omega on its 3.00-A scale and contains a \text{10}\text{.}0-\Omega galvanometer. What is the sensitivity of the galvanometer?
Subject: nursing
Question: Which of the following findings is the best indicator that the client has followed the prescribed nutritional plan to maintain a healthy weight?
Subject: mathematics
Question: About what percent ofxvalues lie between the first and third standard deviations(both sides)?
Subject: biology
Question: What sign/symptom would NOT be associated with infant botulism?    A. difficulty suckling   B. limp body   C. stiff neck   D. weak cry
Subject: physics
Question: What are six particle conservation laws? Briefly describe them.
Subject: mathematics
Question: Find the probability that themeanof a month’s reviews will take Yoonie from 3.5 to 4.25 hrs. Sketch the graph, labeling and scaling the horizontal axis. Shade the region corresponding to the probability.
Subject: mathematics
Question: m^{3} + 125
Subject: mathematics
Question: 49^{\frac{3}{2}}
Subject: mathematics
Question: Two planes leave Dallas at the same time. One heads east at a speed of 428 miles per hour. The other plane heads west at a speed of 382 miles per hour. How many hours will it take them to be 2,025 miles apart?
Subject: economics
Question: Many critics of government programs to help low-income individuals argue that these programs create a poverty trap. Explain how programs such as TANF, EITC, SNAP, and Medicaid will affect low-income individuals and whether or not you think these programs will benefit families and children.
Subject: mathematics
Question: \frac{2^{8}}{2^{2}}
Subject: physics
Question: Consider [Figure 10.12](10-4-nuclear-reactions) . If the magnetic field is replaced by an electric field pointed in toward the page, in which directions will the \alpha -, \beta^{+} -, and \gamma rays bend?
Subject: mathematics
Question: -8(-2) - 3(-9)
Subject: mathematics
Question: f(x) = x^{3} - 4x^{2} + x - 4
Subject: biology
Question: Which type of joint allows for only uniaxial movement?
Subject: political_science
Question: The Federal Communications Commission oversees the programming of which entities?
Subject: political_science
Question: The iron triangle is composed of what three groups?
Subject: mathematics
Question: Does the graph show a linear equation? Why or why not? Figure12.27
Subject: nursing
Question: The nurse is educating a client’s family about the addition of polyphenols to the client’s diet. Which foods should be recommended by the nurse?
Subject: biology
Question: How would a rise in altitude likely affect the speed of a sound transmitted through air? Why?
Subject: astronomy
Question: How do asteroids and comets differ?
Subject: computer_science
Question: What ethical theory focuses on taking actions that could be universalized as moral laws that all individuals should follow?
Subject: mathematics
Question: Find the general solution to this equation (Hint:callω0=b/aω0=b/a).
Subject: mathematics
Question: Construct a PDF table.
Subject: physics
Question: Integrated Concepts A cyclotron accelerates charged particles as shown in [Figure 22.61](22-problems-exercises#import-auto-id2047195) . Using the results of the previous problem, calculate the frequency of the accelerating voltage needed for a proton in a 1.20-T field.
Subject: business
Question: True or false? Title VII of the Civil Rights Act prohibits discrimination based on sexual orientation.
Subject: biology
Question: What movement(s) occur(s) at the scapulae when you shrug your shoulders?
Subject: business
Question: LO3.5What does an account’s “normal balance” indicate?
Subject: psychology
Question: Explain why event schemata have so much power over human behavior.
Subject: business
Question: Define business ethics.
Subject: physics
Question: Two hundred joules of heat are removed from a heat reservoir at a temperature of 200 K. What is the entropy change of the reservoir?
Subject: chemistry
Question: What volume of 0.200MNaOH is necessary to neutralize the solution produced by dissolving 2.00 g of PCl3is an excess of water? Note that when H3PO3is titrated under these conditions, only one proton of the acid molecule reacts.
Subject: business
Question: LO8.2Why is it important to have a very sound and well-developed internal control structure?
Subject: astronomy
Question: Thinking about the topics in this chapter, here is an Earth analogy. In big cities, you can see much farther on days without smog. Why?
Subject: psychology
Question: A child prefers to play with one peer at a time instead of a group of other children. What is this type of play called?
Subject: astronomy
Question: Given the ideas presented here about how galaxies form, would you expect to find a giant elliptical galaxy in the Local Group? Why or why not? Is there in fact a giant elliptical in the Local Group?
Subject: business
Question: What are some opportunities for you to develop the skills you need to establish personal relationships with people that you do not know?
Subject: business
Question: Why is standard deviation of returns a reasonable measure of risk for a portfolio of equity securities?
Subject: business
Question: Suppose one collected the following information where X is diameter of tree trunk and Y is tree height. XY4824818622103068Table13.5 Regression equation:y^i=â3.6+3.1âXiy^i=â3.6+3.1âXi What is your estimate of the average height of all trees having a trunk diameter of 7 inches?
Subject: physics
Question: How will your perceived frequency change if you move away from a stationary source of sound?
Subject: philosophy
Question: Explain how justification is fallible.
Subject: sociology
Question: According to the concept of the power elite, why would a celebrity commit a crime?    A. Because his parents committed similar crimes   B. Because his fame protects him from retribution   C. Because his fame disconnects him from society   D. Because he is challenging socially accepted norms
Subject: history
Question: Which of the following wasnota cause of the Panic of 1819? The Second Bank of the United States made risky loans.States chartered too many banks.Prices for American commodities dropped.Banks hoarded gold and silver.
Subject: mathematics
Question: -6.5y = -57.2
Subject: economics
Question: As a college student you work at a part-time job, but your parents also send you a monthly “allowance.” Suppose one month your parents forgot to send the check. Show graphically how your budget constraint is affected. Assuming you only buy normal goods, what would happen to your purchases of goods?
Subject: biology
Question: After a skin injury, the body initiates a wound-healing response. The first step of this response is the formation of a blood clot to stop bleeding. Which of the following would be the next response?
Subject: chemistry
Question: Calculate the Fe 3+ equilibrium concentration when 0.0888 mole of K 3 [Fe(CN) 6 ] is added to a solution with 0.00010 _M_ CN – .
Subject: nursing
Question: A nursing student is preparing a teaching plan for a client with PD who is being treated with carbidopa/levodopa. Which of the following dietary recommendations is correct?
Subject: psychology
Question: For Aboriginal Australians, participating in death-related activities such as providing comfort to the bereaved and remembering the dead , sometimes through the use of social media (particularly Facebook) is called
Subject: physics
Question: A long, cylindrical solenoid with 100 turns per centimeter has a radius of 1.5 cm. (a) Neglecting end effects, what is the self-inductance per unit length of the solenoid? (b) If the current through the solenoid changes at the rate 5.0 A/s, what is the emf induced per unit length?
Subject: mathematics
Question: \frac{4}{pq} + \frac{5}{p}
Subject: mathematics
Question: Eight and three hundredths
Subject: nursing
Question: Which statement indicates that the client needs additional education on their newly prescribed medication, amiloride?
Subject: physics
Question: For a concave lens, if the image distance,di, is negative, where does the image appear to be with respect to the object?
Subject: biology
Question: Describe how seroconversion works in HIV disease.
Subject: psychology
Question: Which of the following is a component of gender identity and not biological sex?
Subject: mathematics
Question: The velocity of a bullet from a rifle can be approximated byv(t)=6400t2−6505t+2686,v(t)=6400t2−6505t+2686,wherettis seconds after the shot andvvis the velocity measured in feet per second. This equation only models the velocity for the first half-second after the shot:0≤t≤0.5.0≤t≤0.5.What is the total distance the bullet travels in 0.5 sec?
Subject: psychology
Question: Evaluate how creativity changes during middle adulthood. What factors influence whether creativity remains stable, grows, or declines during this stage? Include considerations such as work, hobbies, and life experiences. Imagine you are a career counselor advising a middle-aged client who feels they have lost their creative edge. What strategies could you suggest to help reignite their creativity?
Subject: physics
Question: A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in [Figure 7.36](7-problems-exercises#import- auto-id1299469) . Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in altitude.  Figure 7.36 A toy car moves up a sloped track. (credit: Leszek Leszczynski, Flickr)
Subject: chemistry
Question: Aluminum(EAl3+/Al°=−2.07 V)(EAl3+/Al°=−2.07 V)is more easily oxidized than iron(EFe3+/Fe°=−0.477 V),(EFe3+/Fe°=−0.477 V),and yet when both are exposed to the environment, untreated aluminum has very good corrosion resistance while the corrosion resistance of untreated iron is poor. What might explain this observation?
Subject: economics
Question: What is exclusive dealing? How might it reduce competition and when might it be acceptable?
Subject: economics
Question: Would a research study on the effects of soft drink consumption on children’s cognitive development be a positive or normative statement?
Subject: biology
Question: What mordant is used in Gram staining?    A. crystal violet   B. safranin   C. acid-alcohol   D. iodine
Subject: physics
Question: A hockey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different places, which can be described by a position-dependent coefficient of kinetic friction. For a puck moving along the _x_ -axis, the coefficient of kinetic friction is the following function of _x_ , where _x_ is in m: \mu(x) = 0.1 + 0.05x. Find the work done by the kinetic frictional force on the hockey puck when it has moved (a) from x = 0 to x = 2\ \text{m} , and (b) from x = 2\ \text{m} to x = 4\ \text{m} .
Subject: chemistry
Question: Determine the phase changes that carbon dioxide undergoes as pressure is increased at a constant temperature of (a) −50 °C and (b) 50 °C. If the temperature is held at −40 °C? At 20 °C? (See the phase diagram inFigure 10.34.)
Subject: biology
Question: Name and describe a function of one hormone produced by the anterior pituitary and one hormone produced by the posterior pituitary.
Subject: astronomy
Question: Describe the techniques radio astronomers use to obtain a resolution comparable to what astronomers working with visible light can achieve.
Subject: chemistry
Question: A molecule with the formula AB 3 could have one of four different shapes. Give the shape and the hybridization of the central A atom for each.
Subject: mathematics
Question: Find the sum of the first 25 terms of the arithmetic sequence, 5,9,13,17,21,\text{…}
Subject: economics
Question: What would be evidence of serious competition between firms in an industry? Can you identify two highly competitive industries?
Subject: biology
Question: How does the extracellular matrix control the growth of cells?
Subject: physics
Question: When you insert a dielectric into a capacitor that has been charged and then disconnected from the charging battery, the energy stored in the capacitor decreases. If you take the dielectric out, the energy increases again. Where does this energy go in the former case, and where does the energy come from in the latter case?
Subject: sociology
Question: What is the practice where the differences between low-end and high-end jobs become greater and the number of people in the middle levels decreases?    A. polarization   B. meritocracy   C. outsourcing   D. structural unemployment
Subject: chemistry
Question: Assuming ideal solution behavior, what is the boiling point of a solution of NaCl in water if the solution freezes at −0.93 °C?
Subject: physics
Question: A cable with a linear density of \mu = 0.02\ \text{kg/m} is hung from telephone poles. The tension in the cable is 500.00 N. The distance between poles is 20 meters. The wind blows across the line, causing the cable resonate. A standing waves pattern is produced that has 4.5 wavelengths between the two poles. The speed of sound at the current temperature T = 20\text{°}\text{C} is 343.00\ \text{m/s} . What are the frequency and wavelength of the hum?
Subject: chemistry
Question: The free space in a metal may be found by subtracting the volume of the atoms in a unit cell from the volume of the cell. Calculate the percentage of free space in each of the three cubic lattices if all atoms in each are of equal size and touch their nearest neighbors. Which of these structures represents the most efficient packing? That is, which packs with the least amount of unused space?
Subject: mathematics
Question: x^{2} = 10x + 3
Subject: mathematics
Question: q^{-6} \cdot q^{-5}
Subject: chemistry
Question: An organic compound has a composition of 93.46% C and 6.54% H by mass. A solution of 0.090 g of this compound in 1.10 g of camphor melts at 158.4 °C. The melting point of pure camphor is 178.4 °C.Kffor camphor is 37.7 °C/m. Assuming ideal solution behavior, what is the molecular formula of the solute? Show your calculations.
Subject: business
Question: The elements of res ipsa loquitor that a plaintiff must establish in a product liability lawsuit include all of the following except:
Subject: biology
Question: Which of the following refers to the mechanism of horizontal gene transfer naturally responsible for the spread of antibiotic resistance genes within a bacterial population?    A. conjugation   B. generalized transduction   C. specialized transduction   D. transformation
Subject: physics
Question: What is the direction of the magnetic force on the current in each of the six cases?
Subject: biology
Question: The first suggestion that chromosomes may physically exchange segments came from the microscopic identification of ________.
Subject: physics
Question: In which type of collision is kinetic energy conserved?
Subject: political_science
Question: What are the pros and cons of the neoconservative foreign policy approach followed in recent decades?
Subject: nursing
Question: The nurse is providing education to a client with a newly diagnosed condition related to dysfunctional villi of the small intestine. Which of the following can result from this condition?
Subject: business
Question: If geographic marks that are deceptively misdescriptive are ineligible for trademark protection, then why was Amazon able to gain trademark protection for its name, which refers to a geographic area of South America?    A. The name “Amazon” is not indicative of the geographic source of the retailer’s goods, nor do consumers think those goods come from the Amazonian region.   B. The name “Amazon” is not a factor in whether or not consumers decide to purchase books, clothing, electronics, or anything else from the company.   C. Amazon’s brand stands for low prices and great customer service, not for anything of a geographic nature.   D. All of the above.
Subject: physics
Question: What radius circular path does an electron travel if it moves at the same speed and in the same magnetic field as the proton in [Exercise 22.13](22-problems-exercises#fs-id1347796) ?
Subject: physics
Question: The accompanying figure shows a flat, infinitely long sheet of width _a_ that carries a current _I_ uniformly distributed across it. Find the magnetic field at the point P, which is in the plane of the sheet and at a distance _x_ from one edge. Test your result for the limit a\rightarrow 0.
Subject: biology
Question: Without red marrow, bones would not be able to ________.
Subject: computer_science
Question: The manager of your organization argues that using DOL’s competency models to guide the hiring process is too much work. What do you say to convince your manager that using the competency models can benefit your organization?
Subject: physics
Question: What two pieces of evidence allowed the first calculation ofmeme, the mass of the electron? (a) The ratiosqe/meqe/meandqp/mpqp/mp. (b) The values ofqeqeandEBEB. (c) The ratioqe/meqe/meandqeqe. Justify your response.
Subject: political_science
Question: When using judicial restraint, judges will usually ________.    A. refuse to rule on a case   B. overrule any act of Congress they don’t like   C. defer to the decisions of the elected branches of government   D. make mostly liberal rulings
Subject: biology
Question: You measure a patient’s blood pressure at 130/85. Calculate the patient’s pulse pressure and mean arterial pressure. Determine whether each pressure is low, normal, or high.
Subject: physics
Question: To sterilize a 50.0-g glass baby bottle, we must raise its temperature from \text{22}\text{.}0\text{ºC} to \text{95}\text{.}0º\text{C} . How much heat transfer is required?
Subject: biology
Question: In addition to codominance, the ABO blood group antigens are also an example of ________.
Subject: mathematics
Question: \text{\$612.50} for 35 hours
Subject: history
Question: Which term describes German soldiers hired by Great Britain to put down the American rebellion?    A. Patriots   B. Royalists   C. Hessians   D. Loyalists
Subject: business
Question: Procter & Gamble makes dozens of laundry detergents and adapts these products to market preferences around the world. Two of these brands include Ariel and Mif. Why might European markets prefer Ariel’s formulation and Russian markets demand Mif? Build a list of three reasons why Western Europe and Eastern Europe may differ in their laundry detergent preferences.
Subject: physics
Question: The gravitational force on the basketball inFigure 4.6is ignored. When gravityistaken into account, what is the direction of the net external force on the basketball—above horizontal, below horizontal, or still horizontal?
Subject: computer_science
Question: Explain the role of encryption in network security and why it is considered a key principle.
Subject: mathematics
Question: y = - x^{2} - 8x - 16
Subject: biology
Question: Glucose from digested food enters intestinal epithelial cells by active transport. Why would intestinal cells use active transport when most body cells use facilitated diffusion?
Subject: physics
Question: Compare the electron configurations of the elements in the same column of the periodic table.
Subject: business
Question: What is a unique selling proposition?
Subject: mathematics
Question: Find f(2).
Subject: physics
Question: Suppose that the sled plus passenger of the preceding problem is pushed 20 m across the snow at constant velocity by a force directed 30\text{°} below the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Subject: political_science
Question: This is the formal group of advisors to the head of government.
Subject: physics
Question: Two particles of masses m_{1} and m_{2} separated by a horizontal distance _D_ are let go from the same height _h_ at different times. Particle 1 starts at t = 0 , and particle 2 is let go at t = T . Find the vertical position of the center of mass at a time before the first particle strikes the ground. Assume no air resistance.
Subject: physics
Question: Use another ray-tracing diagram for the same situation as given in the previous problem to derive the thin-lens equation, \frac{1}{d_{\text{o}}} + \frac{1}{d_{\text{i}}} = \frac{1}{f} .
Subject: physics
Question: State an example of a process that occurs in nature that is as close to reversible as it can be.
Subject: biology
Question: If cardiac muscle cells were prevented from undergoing aerobic metabolism, they ultimately would ________.
Subject: biology
Question: The study of viruses is ___________.
Subject: mathematics
Question: (12x^{3} - 7y^{2})(12x^{3} + 7y^{2})
Subject: nursing
Question: A client presents with symptoms of polycystic ovary syndrome (PCOS). Which nutritional plan would be most likely to optimize endocrine wellness for this client to regulate hormonal imbalances?
Subject: business
Question: [LO 8.1](8-1-analyze-fraud-in-the-accounting-workplace) What is an example of _incentive_ as one of the three elements causing a person to commit fraud?
Subject: mathematics
Question: Use set builder notation to write the set of all even integers.
Subject: psychology
Question: What term describes the ability to change our perspective and behavior to match the demands of our current cultural environment, and why is it particularly challenging for people of color?
Subject: physics
Question: By what fraction will the frequencies produced by a wind instrument change when air temperature goes from 10.0\text{°}\text{C} to 30.0\text{°}\text{C} ? That is, find the ratio of the frequencies at those temperatures.
Subject: physics
Question: Structures on a bird feather act like a reflection grating having 8000 lines per centimeter. What is the angle of the first-order maximum for 600-nm light?
Subject: biology
Question: The part of the gastrointestinal tract with the largest natural microbiota is the _________.
Subject: mathematics
Question: SupposeX~N(–1, 2). What is thez-score ofx= 2?
Subject: economics
Question: What is indexing?
Subject: mathematics
Question: a + \frac{1}{3} = \frac{5}{3}
Subject: biology
Question: Which layer of the meninges surrounds and supports the sinuses that form the route through which blood drains from the CNS?
Subject: business
Question: LO1.1Table 1.3shows how different areas within the business world use the information from managerial accountants. Think of the ways that the events coordinator for theUnited Way(a nonprofit charitable organization) would use each area (planning, controlling, and evaluation).
Subject: physics
Question: Describe a situation in which the net external force on a system is not zero, yet its speed remains constant.
Subject: sociology
Question: What did the Clarks use in their experiment noted inExercise 1.13?
Subject: computer_science
Question: For eachdataset, identify the type of the dataset—structured vs. unstructured. Explain why. a.Spotify dataset b.CancerDoc dataset
Subject: computer_science
Question: Describe one specific regulation or standard (such as GDPR or ISO/IEC 27001) aimed at enhancing the security and privacy of web and IoT technology.
Subject: nursing
Question: A client admitted to the emergency department reports abuse of hydrocodone and oxycodone. To which schedule do these drugs belong?
Subject: business
Question: LO8.4Why would managers use a flexible budget? What information does it provide that a regular budget does not?
Subject: biology
Question: Soil particles that are 0.1 to 2 mm in diameter are called ________.
Subject: biology
Question: Both ________ and effector T cells are produced during differentiation of activated T cells.
Subject: economics
Question: Suppose the level of structural unemployment increases. How would you illustrate the increase in structural unemployment in the AD/AS model?Hint: How does structural unemployment affect potential GDP?
Subject: political_science
Question: What does venue shopping mean?
Subject: psychology
Question: Describe a situation in which you would need to use practical intelligence.
Subject: business
Question: “Control” as used in this section does not refer to which of the following?    A. reverence   B. _phrónēsis_   C. temperance   D. Confucian self-regulation
Subject: economics
Question: What is the neoclassical zone of the SRAS curve? How much is the output level likely to change in the neoclassical zone?
Subject: business
Question: LO1.3According to the information on management accounting available at http://www.accounting.com/careers/, what are some areas of specialization?
Subject: anthropology
Question: How would you characterize the impact of colonialism on Indigenous peoples?
Subject: mathematics
Question: \left\langle {-3,-3} \right\rangle
Subject: physics
Question: Which of the following does the friction force NOT depend on?
Subject: physics
Question: A box rests on the (horizontal) back of a truck. The coefficient of static friction between the box and the surface on which it rests is 0.X. What maximum distance can the truck travel (starting from rest and moving horizontally with constant acceleration) in 3.0 s without having the box slide?
Subject: psychology
Question: What is the function of the inner hair cells in the cochlea?
Subject: mathematics
Question: Use the given figure to solve for the angle measurements.
Subject: astronomy
Question: How is a neutrino different from a neutron? List all the ways you can think of.
Subject: biology
Question: What is the advantage for a basidiomycete to produce a showy and fleshy fruiting body?
Subject: physics
Question: What length should an oboe have to produce a fundamental frequency of 110 Hz on a day when the speed of sound is 343 m/s? It is open at both ends.
Subject: computer_science
Question: What is a consideration for mobile application design?
Subject: mathematics
Question: Yanet wants a square patio in her backyard. She has 225 square feet of tile. How long can a side of the patio be?
Subject: physics
Question: How much does a 70-kg astronaut weight in space, far from any celestial body? What is her mass at this location?
Subject: biology
Question: When calcium levels are too high or too low, which body system is primarily affected?
Subject: mathematics
Question: The difference of 32 and 18
Subject: astronomy
Question: Where would you look for some “original” planetesimals left over from the formation of our solar system?
Subject: business
Question: How do the needs of a small business and its founder change from the startup stage to the growth stage?
Subject: history
Question: What was the actual result of Jackson’s policy of “rotation in office”? an end to corruption in Washingtona replacement of Adams’s political loyalists with Jackson’s political loyaliststhe filling of government posts with officials the people chose themselvesthe creation of the Kitchen Cabinet
Subject: physics
Question: Unreasonable Results Two resistors, one having a resistance of 9\text{00 kΩ} , are connected in series to produce a total resistance of 0\text{.}\text{500 MΩ} . (a) What is the value of the second resistance? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?
Subject: chemistry
Question: Refer toAppendix Jfor solubility products for calcium salts. Determine which of the calcium salts listed is most soluble in moles per liter and which is most soluble in grams per liter.
Subject: physics
Question: The power output of the Sun is 4\ \times \ 10^{26}\text{W}. (a) If 90\text{\%} of this energy is supplied by the proton-proton chain, how many protons are consumed per second? (b) How many neutrinos per second should there be per square meter at the surface of Earth from this process?
Subject: history
Question: Which of the following did Mahannotbelieve was needed to build an American empire? a navymilitary bases around the worldthe reopening of the American frontiera canal through Central America
Subject: mathematics
Question: z = e^{x} + \frac{2}{y} at point \left( {0,1,3} \right)
Subject: economics
Question: According to [Table 19.7](19-3-tracking-real-gdp-over-time) , how long has the average expansion lasted since the end of World War II?
Subject: sociology
Question: Which of the following was a topic of study in early sociology?    A. Astrology   B. Economics   C. Physics   D. History
Subject: business
Question: LO8.1What type of firm would use standard costing? What type of firm would not use standard costing?
Subject: mathematics
Question: f(x)=x4sin−1(x)f(x)=x4sin−1(x)
Subject: history
Question: Describe the events leading up to the formation of the Free-Soil Party.
Subject: physics
Question: Two identical strings, of identical lengths of 2.00 m and linear mass density of \mu = 0.0065\ \text{kg/m,} are fixed on both ends. String _A_ is under a tension of 120.00 N. String _B_ is under a tension of 130.00 N. They are each plucked and produce sound at the n = 10 mode. What is the beat frequency?
Subject: economics
Question: Assume there are two countries: South Korea and the United States. South Korea grows at 4% and the United States grows at 1%. For the sake of simplicity, assume they both start from the same fictional income level, $10,@. What will the incomes of the United States and South Korea be in 20 years? By how many multiples will each country’s income grow in 20 years?
Subject: nursing
Question: A 15-year-old client has decided to try a vegetarian diet. Which of the following nutritional deficiencies is this client at risk for developing?
Subject: mathematics
Question: Convert 3115to base 10.
Subject: physics
Question: How would you orient two long, straight, current-carrying wires so that there is no net magnetic force between them? ( _Hint_ : What orientation would lead to one wire not experiencing a magnetic field from the other?)
Subject: physics
Question: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A current of 5.00 A in one is switched off in 1.00 ms, inducing a 9.00 V emf in the other. What is their mutual inductance?
Subject: psychology
Question: If you designed an assessment of job satisfaction, what elements would it include?
Subject: political_science
Question: One of the main sources of political conflict is ________.