mouryat9/CogBench huggingface dataset:
Subject: computer_science
Question: Identify and explain the purpose of each of the three primary delivery models offered in cloud-based computing.
Subject: business
Question: [LO 7.4](7-4-prepare-a-subsidiary-ledger) Which special journals also require an entry to a subsidiary ledger?
Subject: mathematics
Question: {(2ab)}^{8}
Subject: business
Question: What are the ways an agreement can be invalidated?    A. Fraud.   B. Misrepresentation.   C. Undue influence.   D. All of the above.
Subject: biology
Question: People with the CCR5Δ32 mutation of a T-cell surface protein can be exposed to some strains of HIV-1 without becoming sick. What step of the virus life cycle is likely to be inhibited with this mutation?
Subject: sociology
Question: Which type of child abuse is most prevalent in the United States?    A. Physical abuse   B. Neglect   C. Shaken-baby syndrome   D. Verbal mistreatment
Subject: physics
Question: Show that the magnetic field of a thin wire and that of a current loop are zero if you are infinitely far away.
Subject: biology
Question: Which situation would most likely lead to allopatric speciation?
Subject: chemistry
Question: A typical barometric pressure in Denver, Colorado, is 615 mm Hg. What is this pressure in atmospheres and kilopascals?
Subject: mathematics
Question: Is the sequence 0.3,\mspace{7mu} 1.2,\mspace{7mu} 2.1,\mspace{7mu} 3,\ldots arithmetic? If so find the common difference.
Subject: physics
Question: What aspect of the blackbody spectrum forced Planck to propose quantization of energy levels in its atoms and molecules?
Subject: mathematics
Question: Find two equal finite subsets of the set of natural numbers,N={1,2,3,…}, with a cardinality of 3.
Subject: mathematics
Question: A sample of donations to a blood bank contained these blood types:AOAOAAABOOAABAOOAAOOBOBOOOBAOAOOAACreate a frequency distribution for these data.
Subject: astronomy
Question: Describe at least two characteristics of the universe that are explained by the standard Big Bang model.
Subject: biology
Question: Which of the following is the first step in triglyceride degradation?    A. removal of fatty acids   B. β-oxidation   C. breakage of fused rings   D. formation of smaller peptides
Subject: physics
Question: Professional Application Tennis racquets have “sweet spots.” If the ball hits a sweet spot then the player's arm is not jarred as much as it would be otherwise. Explain why this is the case.
Subject: psychology
Question: Between 2006 and 2009, the greatest increases in stress levels were found to occur among ________.
Subject: astronomy
Question: What do we now understand to be the primary difference between normal galaxies and active galaxies?
Subject: economics
Question: Identify the most accurate statement. A price floor will have the largest effect if it is set:    A. substantially above the equilibrium price   B. slightly above the equilibrium price   C. slightly below the equilibrium price   D. substantially below the equilibrium price  Sketch all four of these possibilities on a demand and supply diagram to illustrate your answer.
Subject: psychology
Question: Which is not a mechanism by which drugs are known to alter synaptic transmission?
Subject: physics
Question: If you have completely polarized light of intensity \text{150 W}{/\text{m}^{2}} , what will its intensity be after passing through a polarizing filter with its axis at an \text{89}\text{.}0º angle to the light’s polarization direction?
Subject: physics
Question: Consider two spinning tops with different radii. Both have the same linear instantaneous velocities at their edges. Which top has a higher angular velocity?
Subject: chemistry
Question: As 1 g of the radioactive element radium decays over 1 year, it produces 1.16××1018alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. What is the pressure in pascal of the helium gas produced if it occupies a volume of 125 mL at a temperature of 25 °C?
Subject: physics
Question: Which type of simple machine is a knife?
Subject: biology
Question: Alternative forms of a protein can be beneficial or harmful to a cell. What do you think would happen if too much of an alternative protein bound to the 3' UTR of an RNA and caused it to degrade?
Subject: physics
Question: Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque for 6 days according to the current length of a day, it was rotating at 1 rev/day. (a) What was the angular acceleration during the 6 days? (b) What torque was applied to Earth during this period? (c) What force tangent to Earth at its equator would produce this torque?
Subject: political_science
Question: Around the world, elections:
Subject: chemistry
Question: Complete and balance each of the following half-reactions (steps 2–5 in half- reaction method): (a) \text{Sn}^{4+}(aq)\ \longrightarrow\ \text{Sn}^{2+}(aq) (b) \left\lbrack {\text{Ag}{(\text{NH}_{3})}_{2}} \right\rbrack^{\text{+}}(aq)\ \longrightarrow\ \text{Ag}{(s)} + \text{NH}_{3}(aq) (c) \text{Hg}_{2}\text{Cl}_{2}(s)\ \longrightarrow\ \text{Hg}{(l)} + \text{Cl}^{\text{−}}(aq) (d) \text{H}_{2}\text{O}(l)\ \longrightarrow\ \text{O}_{2}(g)\ {} (in acidic solution)(e) \text{IO}_{3}{}^{\text{−}}(aq)\ \longrightarrow\ \text{I}_{2}(s) (in basic solution) (f) \text{SO}_{3}{}^{2-}(aq)\ \longrightarrow\ \text{SO}_{4}{}^{2-}(aq)\ (in acidic solution)(g) \text{MnO}_{4}{}^{\text{−}}(aq)\ \longrightarrow\ \text{Mn}^{2+}(aq)\ (in acidic solution)(h) \text{Cl}^{\text{−}}(aq)\ \longrightarrow\ \text{ClO}_{3}{}^{\text{−}}(aq)\ (in basic solution)
Subject: astronomy
Question: What kind of visible-light and infrared telescopes on the ground are astronomers planning for the future? Why are they building them on the ground and not in space?
Subject: physics
Question: Your car’s 30.0-W headlight and 2.40-kW starter are ordinarily connected in parallel in a 12.0-V system. What power would one headlight and the starter consume if connected in series to a 12.0-V battery? (Neglect any other resistance in the circuit and any change in resistance in the two devices.)
Subject: nursing
Question: A nurse performs an initial assessment of a client with a height of 5’9” and a weight of 278 pounds. What BMI does the nurse calculate for this client?
Subject: physics
Question: What purpose is served by a long and flexible pole carried by wire-walkers?
Subject: astronomy
Question: What is the main consequence of Mercury’s orbit being so highly eccentric?
Subject: business
Question: Who selects the entrepreneur’s team? Why is this important?
Subject: chemistry
Question: Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is approximately 0.16M. A saline solution for contact lenses is prepared to match the physiological concentration. If you purchase 25 mL of contact lens saline solution, how many grams of sodium chloride have you bought?
Subject: physics
Question: A transverse wave on a horizontal string \left( {\mu = 0.0060\ \text{kg/m}} \right) is described with the equation y\left( {x,t} \right) = 0.30\ \text{m}\ \text{sin}\left( {\frac{2\pi}{4.00\ \text{m}}\left( {x - v_{w}t} \right)} \right). The string is under a tension of 300.00 N. What are the wave speed, wave number, and angular frequency of the wave?
Subject: nursing
Question: Which instruction should the nurse give to a client with allergic rhinitis to decrease symptoms?
Subject: business
Question: LO12.3Name the four contingent liability treatments.
Subject: political_science
Question: How do presidents work to fulfill their campaign promises once in office?
Subject: psychology
Question: Symptoms of PTSD include all of the followingexcept________.
Subject: biology
Question: The structure of a tissue usually is optimized for its function. Describe how the structure of the mucosa and its cells match its function of nutrient absorption.
Subject: political_science
Question: A hypothetical government protects the free expression of ideas but restricts the expression of ideas deemed harmful to the community. This is an example of __________.
Subject: political_science
Question: Nullification is __________.
Subject: physics
Question: Use the concepts on which Maxwell’s equations are based to explain why a compass needle is deflected when the compass is brought near a wire that is carrying an electric current.
Subject: economics
Question: Describe some of the political and social tradeoffs that might occur when a less developed country adopts a strategy to promote labor force participation and economic growth via investment in girls’ education.
Subject: business
Question: Enrique owns five stocks: Alaska Airlines, American Airlines, Delta Airlines, Southwest Airlines, and Ford. Radha also owns five stocks: Apple, McDonald’s, Tesla, Facebook, and Disney. Does Enrique or Radha have a more diversified portfolio?
Subject: psychology
Question: Which strategy can help middle-aged adults improve working memory skills?
Subject: physics
Question: The purpose of this problem is to show in three ways that the binding energy of the electron in a hydrogen atom is negligible compared with the masses of the proton and electron. (a) Calculate the mass equivalent in u of the 13.6-eV binding energy of an electron in a hydrogen atom, and compare this with the mass of the hydrogen atom obtained from [Appendix A](a-atomic-masses) . (b) Subtract the mass of the proton given in [Table 31.2](31-3-substructure-of- the-nucleus) from the mass of the hydrogen atom given in [Appendix A](a-atomic-masses) . You will find the difference is equal to the electron’s mass to three digits, implying the binding energy is small in comparison. (c) Take the ratio of the binding energy of the electron (13.6 eV) to the energy equivalent of the electron’s mass (0.511 MeV). (d) Discuss how your answers confirm the stated purpose of this problem.
Subject: mathematics
Question: (4−6)×2
Subject: computer_science
Question: What can aid in the data migration process when there is minimal need for human interaction?
Subject: physics
Question: A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a player 18.0 m straight downfield. The ball is thrown at an angle of 25.0º relative to the ground and is caught at the same height as it is released. What is the initial velocity of the ball _relative to the quarterback_ ?
Subject: economics
Question: What is the difference between a fixed input and a variable input?
Subject: mathematics
Question: 9,18,27,36,45,\text{…}
Subject: mathematics
Question: \frac{x^{2}}{25} - \frac{y^{2}}{9} = 1
Subject: economics
Question: Imagine that the government statisticians who calculate the inflation rate have been updating the basic basket of goods once every 10 years, but now they decide to update it every five years. How will this change affect the amount of substitution bias and quality/new goods bias?
Subject: physics
Question: If the refrigerator door is left open, what happens to the temperature of the kitchen?
Subject: chemistry
Question: Explain the following observations: (a) It takes longer to cook an egg in Ft. Davis, Texas (altitude, 5000 feet above sea level) than it does in Boston (at sea level). (b) Perspiring is a mechanism for cooling the body.
Subject: biology
Question: Prothrombin is converted to thrombin during the ________.
Subject: computer_science
Question: What is a key process of an effective information security risk management (ISRM) strategy?
Subject: physics
Question: (a) Given the asteroid Vesta which has a diameter of 520 km and mass of 2.67\ \times \ 10^{20}\ \text{kg} , what would be the orbital period for a space probe in a circular orbit of 10.0 km from its surface? (b) Why is this calculation marginally useful at best?
Subject: psychology
Question: Which of the following is considered a risk factor for developing a substance use disorder?
Subject: psychology
Question: When solving problems, older adults tend to use ________ abilities, while younger adults tend to use ________ abilities.
Subject: chemistry
Question: Consider the system shown inFigure 16.9. What is the change in entropy for the process where the energy is initially associated with particles A and B, and the energy is distributed between two particles in different boxes (one in A-B, the other in C-D)?
Subject: psychology
Question: Compare and contrast implicit and explicit memory.
Subject: business
Question: Go to Clorox’s website andreview the company’s primary products. Complete a SWOT matrix for Clorox that lists at least three strengths, weaknesses, opportunities, and threats. The first level in the SWOT has been provided for you below.
Subject: chemistry
Question: A long ton is defined as exactly 2240 lb. What is this mass in kilograms?
Subject: physics
Question: Can the instantaneous power output of an ac source ever be negative? Can the average power output be negative?
Subject: mathematics
Question: n \cdot n^{4}
Subject: sociology
Question: Which of these is an example of a commodity?
Subject: economics
Question: Economists define normal goods as having a positive income elasticity. We can divide normal goods into two types: Those whose income elasticity is less than one and those whose income elasticity is greater than one. Think about products that would fall into each category. Can you come up with a name for each category?
Subject: astronomy
Question: Why is Hubble’s law considered one of the most important discoveries in the history of astronomy?
Subject: physics
Question: Consider a thought experiment. You place an expanded balloon of air on weighing scales outside in the early morning. The balloon stays on the scales and you are able to measure changes in its mass. Does the mass of the balloon change as the day progresses? Discuss the difficulties in carrying out this experiment.
Subject: economics
Question: Take Jeremy’s total utility information in [Exercise 6.1](6-self-check- questions#fs-idp54001568) , and use the marginal utility approach to confirm the choice of phone minutes and round trips that maximize Jeremy’s utility.
Subject: physics
Question: Calculate the speed of sound on a day when a 1500 Hz frequency has a wavelength of 0.221 m.
Subject: political_science
Question: What unusual step did Oregon take to increase voter registration?
Subject: mathematics
Question: The divergence of a vector field is a vector field.
Subject: mathematics
Question: If the skeleton is expected to be 2000 years old, what percentage of radiocarbon should be present?
Subject: sociology
Question: Which intergroup relation do you think is the most beneficial to the subordinate group? To society as a whole? Why?
Subject: physics
Question: Find the distance between two slits that produces the first minimum for 410-nm violet light at an angle of 45.0\text{°}.
Subject: sociology
Question: According to the study cited by the U.S. Census Bureau, children who live with married parents grow up with more advantages than children who live with:    A. a divorced parent   B. a single parent   C. a grandparent   D. all of the above
Subject: political_science
Question: What are the core factors that determine how judges decide in court cases?
Subject: history
Question: What factors contributed to the Boston Massacre?
Subject: nursing
Question: What should the nurse include in dietary instructions for a client with diabetes regarding alcohol consumption?
Subject: business
Question: What are some examples of sociocultural factors that may affect a business?
Subject: chemistry
Question: Explain why the chemically similar alkali metal chlorides NaCl and CsCl have different structures, whereas the chemically different NaCl and MnS have the same structure.
Subject: physics
Question: Eight slits equally separated by 0.149 mm is uniformly illuminated by a monochromatic light at \lambda = 523\ \text{nm} . What is the width of the central principal maximum on a screen 2.35 m away?
Subject: mathematics
Question: f(x)=sinx,a=π2f(x)=sinx,a=π2
Subject: mathematics
Question: \text{10 more than the sum of −5 and −6}
Subject: business
Question: The three dimensions of the triple bottom line include all of the following except:    A. Profits.   B. People.   C. Planet.   D. Promotion.
Subject: business
Question: [LO 6.7](6-7-appendix-analyze-and-record-transactions-for-merchandise- purchases-and-sales-using-the-periodic-inventory-system) A customer obtains an allowance from the retailer in the amount of $450 for damaged merchandise. Which of the following represents the journal entry for this transaction, assuming the customer has not remitted payment?    A.       B.       C.
Subject: physics
Question: If you look out the window of a moving car at houses going past, you sense that you are moving. What have you chosen as your frame of reference?
Subject: mathematics
Question: Use properties of logarithm to expand \ln\left( {y^{3}z^{2} \cdot \sqrt[3]{x - 4}} \right).
Subject: business
Question: Copyrights for U.S. citizens last for what term?    A. 28 years.   B. 14 years, with the right of renewal.   C. Life-plus 70 years.
Subject: physics
Question: The quark flavor changed→ud→utakes place inβ−β−decay. Does this mean that the reverse quark flavor changeu→du→dtakes place inβ+β+decay? Justify your response by writing the decay in terms of the quark constituents, noting that it looks as if a proton is converted into a neutron inβ+β+decay.
Subject: biology
Question: Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?
Subject: biology
Question: Why is the tundra treeless?
Subject: physics
Question: If you wish to detect details of the size of atoms (about 1\times\text{10}^{- \text{10}}\ \text{m} ) with electromagnetic radiation, it must have a wavelength of about this size. (a) What is its frequency? (b) What type of electromagnetic radiation might this be?
Subject: physics
Question: At what minimum angle will you get total internal reflection of light traveling in water and reflected from ice?
Subject: computer_science
Question: What is path coverage?
Subject: business
Question: A patentable invention is a new, novel, and non-obvious machine, manufacture, process, or composition of matter. Which of the four types of inventions categories do these hypothetical mousetrap inventions represent?    A. A mouse ray gun.   B. Exploding mouse glue.   C. A new way to catch mice using sound waves.   D. A mouse-destroying missile.
Subject: biology
Question: Which of the following biomes is characterized by short growing seasons?
Subject: biology
Question: Which enzymes in macrophages are important for clearing intracellular bacteria?
Subject: physics
Question: Why is Einstein’s theory of relativity considered part of modern physics, as opposed to classical physics?
Subject: psychology
Question: What is the feed-forward mechanism in the context of osmotic balance?
Subject: astronomy
Question: Most stars close to the Sun are red dwarfs. What does this tell us about the average star formation event in our Galaxy?
Subject: mathematics
Question: How many multiplication rules are there in a base 3 system?
Subject: sociology
Question: What is the most important commodity in a postindustrial society?
Subject: physics
Question: Figure 24.25shows the interference pattern of two radio antennas broadcasting the same signal. Explain how this is analogous to the interference pattern for sound produced by two speakers. Could this be used to make a directional antenna system that broadcasts preferentially in certain directions? Explain. Figure24.25An overhead view of two radio broadcast antennas sending the same signal, and the interference pattern they produce.
Subject: mathematics
Question: A sidewalk in front of Kathy’s house is in the shape of a rectangle 4 feet wide by 45 feet long.
Subject: political_science
Question: Why does a strong presidency necessarily sap power from Congress?
Subject: mathematics
Question: 2(6x - 5) - 8 = -22
Subject: biology
Question: Which of the following would NOT be considered a reemerging disease?    A. Drug-resistant tuberculosis   B. Drug-resistant gonorrhea   C. Malaria   D. West Nile virus fever/encephalitis
Subject: history
Question: Which of the following groups was _not_ impacted by the invention of barbed wire?    A. ranchers   B. cowboys   C. farmers   D. illegal prostitutes
Subject: history
Question: Before becoming a conservative Republican, Ronald Reagan was ________.    A. a liberal Democrat   B. a Socialist   C. politically apathetic   D. a Herbert Hoover Republican
Subject: business
Question: Which of these is not the purpose of a business plan? thoroughly explain a business idea and how it will be carried outplanning tool and working plan over the course of several yearsrequirement to start a businessplanning for “what-if” scenarios and explore new options
Subject: mathematics
Question: What is the Mean Square Factor?
Subject: mathematics
Question: 3a - 4b\ \text{when}\ a = 10,b = 1
Subject: computer_science
Question: You are designing a website that will encourage your customers to share opinions, and you want to ensure their civil liberties are protected while keeping their personal data safe from hackers. What aspect of cybersecurity are you concerned about?
Subject: mathematics
Question: The mean entry level salary of an employee at a company is $58,000. You believe it is higher for IT professionals in the company. State the null and alternative hypotheses.
Subject: business
Question: Efforts to get employees to believe in the product, to commit to the idea that the company is selling something worth buying, and even to think about buying it are part of ________.    A. brand loyalty   B. internal marketing   C. employee engagement   D. company identity
Subject: biology
Question: What is the difference between intracellular signaling and intercellular signaling?
Subject: business
Question: [LO 4.3](4-3-record-and-post-the-common-types-of-adjusting-entries) Which of these transactions requires an adjusting entry (debit) to Unearned Revenue?    A. revenue earned but not yet collected   B. revenue collected but not yet earned   C. revenue earned before being collected, when it is later collected   D. revenue collected before being earned, when it is later earned
Subject: business
Question: The burden of proof in a threatened trade secret misappropriation case lies with whom?    A. The trade secret owner.   B. The former employee who leaves to go work for a competitor.   C. The competitor, who must prove he did no wrong by hiring the ex-employee.
Subject: political_science
Question: Why do some groups have an easier time overcoming collective action problems?
Subject: physics
Question: When 400 J of heat are slowly added to 10 mol of an ideal monatomic gas, its temperature rises by 10\ \text{°}\text{C} . What is the work done on the gas?
Subject: sociology
Question: What occurs in Lawrence Kohlberg’s conventional level?
Subject: mathematics
Question: Third derivative ofy=(3x+2)2y=(3x+2)2
Subject: physics
Question: In view of the small currents that cause shock hazards and the larger currents that circuit breakers and fuses interrupt, how do they play a role in preventing shock hazards?
Subject: chemistry
Question: When ammonium chloride is added to water and stirred, it dissolves spontaneously and the resulting solution feels cold. Without doing any calculations, deduce the signs of ΔG, ΔH, and ΔSfor this process, and justify your choices.
Subject: mathematics
Question: A car weighs approximately 2 metric tons (mt). If a used car dealer has 222,000 kg of cars in their lot, how many cars are in the lot?
Subject: mathematics
Question: 14n - 3\left( {4n + 5} \right) = -9 + 2\left( {n - 8} \right)
Subject: physics
Question: The total energy in the beam of an accelerator is far greater than the energy of the individual beam particles. Why isn’t this total energy available to create a single extremely massive particle?
Subject: physics
Question: A microwave of an unknown wavelength is incident on a single slit of width 6 cm. The angular width of the central peak is found to be 25\text{°} . Find the wavelength.
Subject: physics
Question: Which statement correctly describes the object’s speed, as well as what a graph of acceleration vs. time would look like?
Subject: biology
Question: Which of these is a facial bone?
Subject: physics
Question: A 120-V immersion heater consists of a coil of wire that is placed in a cup to boil the water. The heater can boil one cup of 20.00\ \text{°}\text{C} water in 180.00 seconds. You buy one to use in your dorm room, but you are worried that you will overload the circuit and trip the 15.00-A, 120-V circuit breaker, which supplies your dorm room. In your dorm room, you have four 100.00-W incandescent lamps and a 1500.00-W space heater. (a) What is the power rating of the immersion heater? (b) Will it trip the breaker when everything is turned on? (c) If it you replace the incandescent bulbs with 18.00-W LED, will the breaker trip when everything is turned on?
Subject: biology
Question: When male lions reach sexual maturity, they leave their group in search of a new pride. This can alter the allele frequencies of the population through which of the following mechanisms?
Subject: physics
Question: An inventor notices that a soap bubble is dark at its thinnest and realizes that destructive interference is taking place for all wavelengths. How could she use this knowledge to make a non-reflective coating for lenses that is effective at all wavelengths? That is, what limits would there be on the index of refraction and thickness of the coating? How might this be impractical?
Subject: biology
Question: Kupffer cells residing in the liver are a type of ________.
Subject: mathematics
Question: Find the common ratio for the geometric sequence 2.5,\mspace{9mu} 5,\mspace{9mu} 10,\mspace{9mu} 20,\ldots
Subject: physics
Question: A camera with a 50.0-mm focal length lens is being used to photograph a person standing 3.00 m away. (a) How far from the lens must the film be? (b) If the film is 36.0 mm high, what fraction of a 1.75-m-tall person will fit on it? (c) Discuss how reasonable this seems, based on your experience in taking or posing for photographs.
Subject: anthropology
Question: Draw your own kinship chart using lineal kinship terminology. Then, redraw the chart in the bifurcate merging and generational forms. How does your family change as a result of changing the way you define family?
Subject: economics
Question: What is a minimum resale price maintenance agreement? How might it reduce competition and when might it be acceptable?
Subject: physics
Question: An object of height 3.0 cm is placed 5.0 cm in front of a converging lens of focal length 20 cm and observed from the other side. Where and how large is the image?
Subject: mathematics
Question: (0.3)(0.4)
Subject: physics
Question: Two objects rest on a uniform surface. A person pushes both with equal force. If the first object starts to move faster than the second, what can be said about their masses?
Subject: mathematics
Question: \frac{7505}{25}
Subject: biology
Question: Describe at least two major changes to the animal phylogenetic tree that have come about due to molecular or genetic findings.
Subject: mathematics
Question: Elouise is creating a rectangular garden in her back yard. The length of the garden is 12 feet. The perimeter of the garden must be at least 36 feet and no more than 48 feet. Use a compound inequality to find the range of values for the width of the garden.
Subject: biology
Question: Which of these joints is classified as a synarthrosis?
Subject: mathematics
Question: Assume the population is changing linearly.    A. ⓐ How much did the population grow between the year 2004 and 2012?   B. ⓑ What is the average population growth per year?   C. ⓒ Find an equation for the population, _P_ , of the school _t_ years after 2004.
Subject: chemistry
Question: Answer the following questions about a Blu-ray laser: (a) The laser on a Blu-ray player has a wavelength of 405 nm. In what region of the electromagnetic spectrum is this radiation? What is its frequency? (b) A Blu-ray laser has a power of 5 milliwatts (1 watt = 1 J s−1). How many photons of light are produced by the laser in 1 hour? (c) The ideal resolution of a player using a laser (such as a Blu-ray player), which determines how close together data can be stored on a compact disk, is determined using the following formula: Resolution = 0.60(λ/NA), whereλis the wavelength of the laser and NA is the numerical aperture. Numerical aperture is a measure of the size of the spot of light on the disk; the larger the NA, the smaller the spot. In a typical Blu-ray system, NA = 0.95. If the 405-nm laser is used in a Blu-ray player, what is the closest that information can be stored on a Blu-ray disk? (d) The data density of a Blu-ray disk using a 405-nm laser is 1.5××107bits mm−2. Disks have an outside diameter of 120 mm and a hole of 15-mm diameter. How many data bits can be contained on the disk? If a Blu-ray disk can hold 9,400,000 pages of text, how many data bits are needed for a typed page? (Hint: Determine the area of the disk that is available to hold data. The area inside a circle is given by A =πr2, where the radiusris one-half of the diameter.)
Subject: physics
Question: A coil with 50 turns and area 10 \text{cm}^{2} is oriented with its plane perpendicular to a 0.75-T magnetic field. If the coil is flipped over (rotated through 180\text{°} ) in 0.20 s, what is the average emf induced in it?
Subject: mathematics
Question: Jorge got a raise in his hourly pay, from \text{\$19.00} to \text{\$19.76}. Find the percent increase.
Subject: history
Question: Which of the following demands did the Soviet Union make of Britain and the United States? the right to try all Nazi war criminals in the Soviet Unionthe invasion of North Africa to help the Soviet Union’s ally Iraqthe invasion of western Europe to draw German forces away from the Soviet Unionthe right to place Communist Party leaders in charge of the German government
Subject: physics
Question: What is the kinetic energy in MeV of a \pi -meson that lives 1\text{.}{\text{40} \times 10^{- \text{16}}}\ \text{s} as measured in the laboratory, and 0\text{.}{\text{840} \times 10^{- \text{16}}}\ \text{s} when at rest relative to an observer, given that its rest energy is 135 MeV?
Subject: physics
Question: (a) Calculate the angular momentum of the Earth in its orbit around the Sun. (b) Compare this angular momentum with the angular momentum of Earth on its axis.
Subject: physics
Question: In the region just outside the south pole of a magnet, the magnetic field lines ______.
Subject: physics
Question: What are the largest and smallest resistances you can obtain by connecting a \text{36}\text{.}0-\Omega , a \text{50}\text{.}0-\Omega , and a \text{700-Ω} resistor together?
Subject: chemistry
Question: Plutonium was detected in trace amounts in natural uranium deposits by Glenn Seaborg and his associates in ߕ. They proposed that the source of this 239 Pu was the capture of neutrons by 238 U nuclei. Why is this plutonium not likely to have been trapped at the time the solar system formed 4.7 \times 10 9 years ago?
Subject: physics
Question: A Molniya orbit is a highly eccentric orbit of a communication satellite so as to provide continuous communications coverage for Scandinavian countries and adjacent Russia. The orbit is positioned so that these countries have the satellite in view for extended periods in time (see below). If a satellite in such an orbit has an apogee at 40,000.0 km as measured from the center of Earth and a velocity of 1.68 km/s, what would be its velocity at perigee measured at 200.0 km altitude?
Subject: chemistry
Question: Calculate the volume of oxygen required to burn 12.00 L of ethane gas, C 2 H 6 , to produce carbon dioxide and water, if the volumes of C 2 H 6 and O 2 are measured under the same conditions of temperature and pressure.
Subject: biology
Question: Using the following terms, explain what classifications and groups humans fall into, from the most general to the most specific: symmetry, germ layers, coelom, embryological development.
Subject: chemistry
Question: A large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL water. When the jewelry is submerged in the graduated cylinder, the total volume increases to 61.2 mL. (a) Determine the density of this piece of jewelry. (b) Assuming that the jewelry is made from only one substance, what substance is it likely to be? Explain.
Subject: mathematics
Question: Find the measure of the missing angles in the figure shown.
Subject: business
Question: How would you represent the area to the left of one in a probability statement? Figure6.13
Subject: mathematics
Question: Solve for _x_ : \frac{5}{x + 4} = 4 + \frac{3}{x - 2}.
Subject: physics
Question: What is the \text{emf}_{\text{x}}{} of a cell being measured in a potentiometer, if the standard cell’s emf is 12.0 V and the potentiometer balances for {R_{\text{x}} = 5}\text{.}\text{000}\,\Omega and {R_{\text{s}} = 2}\text{.}\text{500}\,\Omega ?
Subject: business
Question: True or false? The phrase caveat emptor means the seller is principally responsible for purchase decisions, not the buyer.
Subject: psychology
Question: Name and define the features of language. Provide an example of at least one feature.
Subject: economics
Question: How is monopoly different from perfect competition?
Subject: mathematics
Question: \frac{12x^{2} + 42x - 6}{2x}
Subject: sociology
Question: Which is evidence that the United States workforce is largely a meritocracy?
Subject: business
Question: LO7.4The purchase of equipment for cash would be recorded in which special journal?
Subject: mathematics
Question: Use ranked-choice voting to determine the two options in the final round and the number of votes they each receive in that round.
Subject: physics
Question: Specify the points to which you could connect a voltmeter to measure the following potential differences inFigure 21.47: (a) the potential difference of the voltage source; (b) the potential difference acrossR1R1; (c) acrossR2R2; (d) acrossR3R3; (e) acrossR2R2andR3R3. Note that there may be more than one answer to each part. Figure21.47
Subject: computer_science
Question: What is one of the significant challenges associated with big data collection and use?
Subject: mathematics
Question: \left( {6u} \right)^{-3}
Subject: astronomy
Question: Does an elliptical galaxy rotate like a spiral galaxy? Explain.
Subject: business
Question: What is a brand? Why is it important to work toward gaining recognition for the brand, especially for a start-up brand?
Subject: biology
Question: Electrolytes are lost mostly through ________.
Subject: business
Question: The crime of larceny includes: The nontresspassory taking and controlling of personal property.The trespassory taking and carrying away of real or personal property.Joyriding.The trespassory taking and control of personal property.
Subject: biology
Question: Which of these organs is not considered an accessory digestive structure?
Subject: psychology
Question: Sensory neurons enter the spinal cord from the ________ side.
Subject: chemistry
Question: There are two molecules with the formula C 3 H 6 . Propene, \text{CH}_{3}\text{CH} = \text{CH}_{2}, is the monomer of the polymer polypropylene, which is used for indoor-outdoor carpets. Cyclopropane is used as an anesthetic:   When heated to 499 °C, cyclopropane rearranges (isomerizes) and forms propene with a rate constant of   5.95 \times 10 −4 s −1 . What is the half-life of this reaction? What fraction of the cyclopropane remains after 0.75 h at 499 °C?
Subject: business
Question: [LO 9.4](9-4-discuss-the-role-of-accounting-for-receivables-in-earnings- management) Which of the following is _not_ a way to manage earnings?    A. Change the method for bad debt estimation.   B. Change the figure for the uncollectible percentage.   C. Under the balance sheet aging method, change the past-due categories.   D. Change the dates of common stock issuance.
Subject: physics
Question: Find the frequency of a tuning fork that takes 2\text{.}{\text{50} \times \text{10}^{- 3}}\ \text{s} to complete one oscillation.
Subject: biology
Question: Which of the following diseases is not due to autoimmunity?
Subject: political_science
Question: President George W. Bush was a proponent of liberal internationalism in his foreign policy. truefalse
Subject: biology
Question: If the M checkpoint is not cleared, what stage of mitosis will be blocked?
Subject: psychology
Question: Explain the concept of post-formal thought in your own words.
Subject: astronomy
Question: What is a wave? Use the termswavelengthandfrequencyin your definition.
Subject: mathematics
Question: limx→22x2−3x−2x−2limx→22x2−3x−2x−2
Subject: psychology
Question: Imagine that you are a psychiatrist. Your patient, Pat, comes to you with the following symptoms: anxiety and feelings of sadness. Which therapeutic approach would you recommend and why?
Subject: biology
Question: Protein modification can alter gene expression in many ways. Describe how phosphorylation of proteins can alter gene expression.
Subject: biology
Question: Which of the following isnota member of the phylum Chordata?
Subject: mathematics
Question: y^{2} = y + 132
Subject: economics
Question: How can a monopolist identify the profit-maximizing level of output if it knows its total revenue and total cost curves?
Subject: physics
Question: Describe the energy transfers and transformations for a javelin, starting from the point at which an athlete picks up the javelin and ending when the javelin is stuck into the ground after being thrown.
Subject: mathematics
Question: Solve the equation f(x) = 5.
Subject: sociology
Question: If the percentage of Asian Americans in Congress is far below the percentage of Asian Americans in the United States, does that mean Asian Americans lack political power? Why or why not?
Subject: psychology
Question: Discuss the challenges to the generalizability of research findings in developmental psychology. What does the term “WEIRD” refer to, and how does it highlight issues in research applicability? Use examples from the text to explain the significance of these challenges and potential solutions.
Subject: physics
Question: Why does the setup of Davisson–Germer experiment need to be enclosed in a vacuum chamber? Discuss what result you expect when the chamber is not evacuated.
Subject: biology
Question: Different MHC I molecules between donor and recipient cells can lead to rejection of a transplanted organ or tissue. Suggest a reason for this.
Subject: biology
Question: The binding of ________ is required for transcription to start.
Subject: physics
Question: How does the lithium deuteride in the thermonuclear bomb shown inFigure 32.28supply tritium(3H)(3H)as well as deuterium(2H)(2H)?
Subject: philosophy
Question: What is Nozick’s experience machine, and how does it help you think about the limitations of hedonism?
Subject: physics
Question: If a marathon runner averages 9.5 mi/h, how long does it take him or her to run a 26.22-mi marathon?
Subject: biology
Question: What accounts for the different number of ATP molecules that are formed through cellular respiration?
Subject: physics
Question: Are all ocean waves perfectly sinusoidal?
Subject: mathematics
Question: Construct a truth table or Venn diagram to prove whether the following argument is valid. If the argument is valid, determine whether it is sound.If all frogs are brown, then Kermit is not a frog. Kermit is a frog. Therefore, some frogs are not brown.
Subject: mathematics
Question: \frac{3}{2}
Subject: chemistry
Question: Explain why addition of NH3or HNO3to a saturated solution of Cu(OH)2in contact with solid Cu(OH)2increases the solubility of the solid.
Subject: nursing
Question: Which of the following instructions should the nurse include when teaching a client about levothyroxine?
Subject: psychology
Question: Which of the following is the order of stages in Kübler-Ross’s five-stage model of grief?
Subject: biology
Question: Wolff’s law, which describes the effect of mechanical forces in bone modeling/remodeling, would predict that ________
Subject: biology
Question: How do cilia and flagella differ?
Subject: biology
Question: In terms of evolution, why might the urea cycle have evolved in organisms?
Subject: chemistry
Question: Write the electron configurations for each of the following elements: (a) Sc (b) Ti (c) Cr (d) Fe (e) Ru
Subject: physics
Question: How can you express the velocity,v→, of a projectile in terms of its initial velocity,v0→, acceleration,a→, and time,t?
Subject: chemistry
Question: Write the formulas of the following compounds: (a) lithium carbonate (b) sodium perchlorate (c) barium hydroxide (d) ammonium carbonate (e) sulfuric acid (f) calcium acetate (g) magnesium phosphate (h) sodium sulfite
Subject: physics
Question: What is the power of a lens with a focal length of 10 cm?
Subject: anthropology
Question: Can you think of any genres of mass media not covered in this chapter? How could an anthropologist conduct research on those topics? What might be the focus of the research? What might be the challenges?
Subject: physics
Question: A tunnel is dug through the center of a perfectly spherical and airless planet of radius _R_ . Using the expression for _g_ derived in [Gravitation Near Earth’s Surface](13-2-gravitation-near-earths-surface) for a uniform density, show that a particle of mass _m_ dropped in the tunnel will execute simple harmonic motion. Deduce the period of oscillation of _m_ and show that it has the same period as an orbit at the surface.
Subject: sociology
Question: America’s baby Boomer generation has contributed to all of the following except:
Subject: chemistry
Question: What is the limiting reactant in a reaction that produces sodium chloride from 8 g of sodium and 8 g of diatomic chlorine?
Subject: chemistry
Question: Complete and balance the following acid-base equations: (a) HCl gas reacts with solid Ca(OH)2(s). (b) A solution of Sr(OH)2is added to a solution of HNO3.
Subject: mathematics
Question: \left( {q - 15} \right)^{2}
Subject: business
Question: LO2.1Identify one similarity and one difference between revenues and gains. Why is this distinction important to stakeholders?
Subject: physics
Question: The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the horizontal as shown below. The coefficient of friction of ice can be found in [Table 6.1](6-2-friction) . Calculate the minimum force _F_ he must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained?
Subject: biology
Question: Which of the following is not important in preventing backflow of blood?
Subject: chemistry
Question: Write cell schematics for the following cell reactions, using platinum as an inert electrode as needed. (a)Mg(s)+Ni2+(aq)⟶Mg2+(aq)+Ni(s)Mg(s)+Ni2+(aq)⟶Mg2+(aq)+Ni(s) (b)2Ag+(aq)+Cu(s)⟶Cu2+(aq)+2Ag(s)2Ag+(aq)+Cu(s)⟶Cu2+(aq)+2Ag(s) (c)Mn(s)+Sn(NO3)2(aq)⟶Mn(NO3)2(aq)+Sn(s)Mn(s)+Sn(NO3)2(aq)⟶Mn(NO3)2(aq)+Sn(s) (d)3CuNO3(aq)+Au(NO3)3(aq)⟶3Cu(NO3)2(aq)+Au(s)3CuNO3(aq)+Au(NO3)3(aq)⟶3Cu(NO3)2(aq)+Au(s)
Subject: biology
Question: A scientist introduces a mutation that makes the 60S ribosomal subunit nonfunctional in a human cell line. What would be the predicted effect on translation?
Subject: physics
Question: (a) If a single slit produces a first minimum at \text{14}\text{.}5º , at what angle is the second-order minimum? (b) What is the angle of the third-order minimum? (c) Is there a fourth-order minimum? (d) Use your answers to illustrate how the angular width of the central maximum is about twice the angular width of the next maximum (which is the angle between the first and second minima).
Subject: physics
Question: An oxygen atom (mass 16 u) moving at 733 m/s at 15.0° with respect to the \mathbf{\hat{i}} direction collides and sticks to an oxygen molecule (mass 32 u) moving at 528 m/s at 128° with respect to the \mathbf{\hat{i}} direction. The two stick together to form ozone. What is the final velocity of the ozone molecule?
Subject: sociology
Question: Baby Boomers have been called the “Me Generation.” Do you know any baby Boomers? In what way do they exemplify their generation?
Subject: mathematics
Question: -5y(125y^{3} - 1)
Subject: psychology
Question: After spearheading an initiative to revitalize the playground in their local community, Rieve feels a sense of purpose and accomplishment despite the work that was involved in leading the project. What is the type of happiness that might be derived from this experience called?
Subject: history
Question: What specific forces or interests transformed the relationship between the United States and the rest of the world between 1865 and 1890?
Subject: psychology
Question: Which of the following statements best reflects the current understanding of sexual behavior in the animal kingdom?
Subject: psychology
Question: The ________ is a small indentation of the retina that contains cones.
Subject: business
Question: What does At-Will Employment mean?
Subject: physics
Question: A camera uses a lens with aperture 2.0 cm. What is the angular resolution of a photograph taken at 700 nm wavelength? Can it resolve the millimeter markings of a ruler placed 35 m away?
Subject: biology
Question: What are the advantages and disadvantages of each of these types of microscopes?
Subject: physics
Question: Why are different radiopharmaceuticals used to image different parts of the body?
Subject: biology
Question: Toll-like receptors are examples of ________.
Subject: physics
Question: Diffraction spreading for a flashlight is insignificant compared with other limitations in its optics, such as spherical aberrations in its mirror. To show this, calculate the minimum angular spreading of a flashlight beam that is originally 5.00 cm in diameter with an average wavelength of 600 nm.
Subject: mathematics
Question: 9\frac{13}{20} - 4\frac{11}{20}
Subject: chemistry
Question: The melting point of H 2 O( _s_ ) is 0 °C. Would you expect the melting point of H 2 S( _s_ ) to be −85 °C, 0 °C, or 185 °C? Explain your answer.
Subject: mathematics
Question: \sqrt{3}\cot(y) = 1
Subject: psychology
Question: In order for the central route to persuasion to be effective, the audience must be ________ and ________.
Subject: business
Question: [LO 1.4](1-4-describe-the-role-of-the-institute-of-management-accountants-and- the-use-of-ethical-standards) When a representative of an organization gives money to another business official in order to gain favor and/or manipulate a business decision, this is known as ________.    A. whistleblowing   B. bribery   C. buyer debits   D. face value
Subject: mathematics
Question: \frac{2a^{2} - a - 3}{2a^{2} - 6a - 8} \cdot \frac{5a^{2} - 19a - 4}{10a^{2} - 13a - 3}
Subject: chemistry
Question: How many tons of Ca3(PO4)2are necessary to prepare 5.0 tons of phosphorus if the yield is 90%?
Subject: physics
Question: The coordinate axes of the reference frame S^{\prime} remain parallel to those of S , as S^{\prime} moves away from S at a constant velocity \mathbf{\overset{\rightarrow}{v}}_{S^{\prime}}^{S} = (4.0\mathbf{\hat{i}} + 3.0\mathbf{\hat{j}} + 5.0\mathbf{\hat{k}})\ {\text{m}\text{/}\text{s}.} (a) If at time _t_ = 0 the origins coincide, what is the position of the origin O^{\prime} in the _S_ frame as a function of time? (b) How is particle position for \mathbf{\overset{\rightarrow}{r}}(t) and \mathbf{\overset{\rightarrow}{r}}^{\prime}(t), as measured in _S_ and S^{\prime}, respectively, related? (c) What is the relationship between particle velocities \mathbf{\overset{\rightarrow}{v}}(t)\ \text{and}\ \mathbf{\overset{\rightarrow}{v}}^{\prime}(t)? (d) How are accelerations \mathbf{\overset{\rightarrow}{a}}\text{(t)}\ \text{and}\ \mathbf{\overset{\rightarrow}{a}}^{\prime}\text{(t)} related?
Subject: philosophy
Question: Why did the Epicureans embrace empiricism?
Subject: chemistry
Question: In an experiment, a sample of NaClO3was 90% decomposed in 48 min. Approximately how long would this decomposition have taken if the sample had been heated 20 °C higher? (Hint: Assume the rate doubles for each 10 °C rise in temperature.)
Subject: biology
Question: Calcium cannot be absorbed from the small intestine if ________ is lacking.