Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780137443000
Author: Eugenia Etkina, Gorazd Planinsic
Publisher: PEARSON+
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Textbook Question
Chapter 16, Problem 5MCQ
The law of energy conservation says that energy is always conserved; it can only be transferred from one system to another or converted from one form to another. Why then do environmentalists argue for energy conservation?
a. Because they are talking about isolated systems.
b. Because the environmentalists mean the energy that is useful for doing work
c. Because when a car burns fuel, its energy is used up
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Students have asked these similar questions
Which of the following statements about energy is not true?
a.
The mechanical energy of a physical system is constant when the forces acting on the system are all conservative forces.
b.
The total energy of the universe is always conserved.
c.
According to the work-energy theorem, the forces that contribute to the net work include all the conservative and nonconservative forces.
d.
Mechanical energy is always conserved
e.
Energy can change form, but it cannot be created or destroyed.
Which of the following statements are FALSE?
A. Energy is a vector physical quantity.
B. Energy is always required to do work.
C. Total mechanical energy can never be zero.
D. When law of conservation of mechanical energy is invoked, there can never be a waste energy in an ideal system.
E. When law of conservation of mechanical energy is invoked, there can never be a waste energy in a real-world system.
F. Kinetic energy can be negative.
G. Potential energy can be negative.
H. Work is equivalent to the negative change in kinetic energy.
I. Work is equivalent to the negative change in potential energy.
J. In a conservative system where only gravitational force acts, the total mechanical energy is constant at every point of the motion.
K. In a non-conservative system where certain external forces may act, the total mechanical energy is not constant at every point of the motion.
L. The entire universe may be considered as a closed system where the total energy is constant.
choices
O…
Which of the following statements are TRUE?
A. Energy is a vector physical quantity.
B. Energy is always required to do work.
C. Totol mechanical energy can never be zero.
D. When law of conservation of mechanical energy is invoked, there can never be a waste energy in an ideal system.
E. When law of conservation of mechanical energy is invoked, there can never be a waste energy in a real-world system.
F. Kinetic energy can be negative.
G. Potential energy can be negative.
H. Work is equivalent to the negative change in kinetic energy.
I. Work is equivalent to the negative change in potential energy.
J. In a conservative system where only gravitational force acts, the total mechanical energy is constant at every point of the motion.
K. In a non-conservative system where certain external forces may act, the total mechanical energy is not constant at every point of the motion.
L The entire universe may be considered as a closed system where the total energy is constant.
chnices
O B. D.…
Chapter 16 Solutions
Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
Ch. 16 - Prob. 1RQCh. 16 - Prob. 2RQCh. 16 - Prob. 3RQCh. 16 - Prob. 4RQCh. 16 - Which of the following processes is reversible?...Ch. 16 - In physics the collision of billiard balls is...Ch. 16 - Prob. 3MCQCh. 16 - 4. When driving a car (the system), what object...Ch. 16 - 5. The law of energy conservation says that energy...Ch. 16 - Prob. 6MCQ
Ch. 16 - Entropy can be calculated using which of the...Ch. 16 - Prob. 8MCQCh. 16 - 9. When a drop of ink enters a glass of water and...Ch. 16 - 10. Choose the best reason why the following...Ch. 16 - Prob. 11MCQCh. 16 - Which of the following changes will always...Ch. 16 - Entropy change is easier to determine for...Ch. 16 - 14. Describe five everyday examples of processes...Ch. 16 - Prob. 15CQCh. 16 - 16. In terms of the statistical definition of...Ch. 16 - 17. The entropy of the molecules that form leaves...Ch. 16 - Prob. 18CQCh. 16 - Below, BIO indicates a problem with a biological...Ch. 16 - Below, BIO indicates a problem with a biological...Ch. 16 - Prob. 3PCh. 16 - Below, BIO indicates a problem with a biological...Ch. 16 - Prob. 5PCh. 16 - 6. (a) Identify all of the macrostate...Ch. 16 - 7. * Repeat the previous problem for a system with...Ch. 16 - * Determine the ratio of the number of microstates...Ch. 16 - Prob. 9PCh. 16 - 10. * Parachutists landing on island Parachutists...Ch. 16 - Prob. 11PCh. 16 - * Nine numbered balls are dropped randomly into...Ch. 16 - * Rolling dice Two dice are rolled Macrostates of...Ch. 16 - 14.* (a) Apply your knowledge of probability to...Ch. 16 - Explain using your knowledge of probability why a...Ch. 16 - * EST Estimate the total change in entropy of two...Ch. 16 - 17. * EST (a) You add 0.1 kg of water at of iced...Ch. 16 - * Entropy change of a house A house at 20C...Ch. 16 - 19. ** Barrel of water in cellar in winter A...Ch. 16 - 20. * EST (a) Determine the final temperature when...Ch. 16 - * A 5.0-kg block slides on a level surface and...Ch. 16 - with the horizontal. Determine the entropy change...Ch. 16 - Prob. 23PCh. 16 - * BIO Efficiency of woman walking A 60-kg woman...Ch. 16 - Prob. 25PCh. 16 - 26. ** A cyclic process involving 1 mole of ideal...Ch. 16 - 27. ** A cyclic process involving 1 mole of ideal...Ch. 16 - Prob. 28PCh. 16 - Prob. 29PCh. 16 - Prob. 30PCh. 16 - Prob. 31PCh. 16 - 32. Rank the engines that operate with the...Ch. 16 - 33. Nuclear power plant A nuclear power plant...Ch. 16 - Prob. 34PCh. 16 - Prob. 35GPCh. 16 - W=AUint. W=(3.0)105N/m2 )(0.020m30.010m3)+0...Ch. 16 - * A thermodynamic engine operates between two...Ch. 16 - 38. * A refrigerator transfers 700 J of thermal...Ch. 16 - Prob. 39RPPCh. 16 - Prob. 40RPPCh. 16 - Fuel used to counter air resistance The resistive...Ch. 16 - Prob. 42RPPCh. 16 - Prob. 43RPPCh. 16 - The value of CA for a Ford Escape Hybrid is...
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