Diff: 2 Topic: Energy 35 One end of a long, uniform log is raised to shoulder level. Another identical log is raised at its center to the same level. Raising the second log requires about A the same amount of work. B twice as much work. C more than twice as much work.

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Diff: 2 Topic: Energy 35 One end of a long, uniform log is raised to shoulder level. Another identical log is raised at its center to the same level. Raising the second log requires about A the same amount of work. B twice as much work. C more than twice as much work. Answer: B Diff: 2 Topic: Energy 36 Two identical arrows, one with twice the kinetic energy of the other, are fired into a hay bale.

The faster arrow will penetrate A the same distance as the slower arrow. B twice as far as the slower arrow. C four times as far as the slower arrow. D more than four times as far as the slower arrow. E none of these Diff: 2 Topic: Energy 37 A car moves 4 times as fast as another identical car.

Compared to the slower car, the faster car has A 4 times the KE. B 8 times the KE. C 12 times the KE. D 16 times the KE. Answer: D Diff: 2 Topic: Energy 38 A ball is projected into the air with J of kinetic energy which is transformed to gravitational potential energy at the top of its trajectory.

When it returns to its original level after encountering air resistance, its kinetic energy is A less than J. B more than J. C J. D not enough information given Answer: A Diff: 2 Topic: Energy 39 Strictly speaking, more fuel is consumed by your car if an air conditioner, headlights, or even a radio is turned on. This statement is A totally false. D true.

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## Chapter 1 - Reading Check Questions (Comprehension) - Page 17: 1

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## Conceptual Physics, 12th Edition

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