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The topic for this question is Work and Energy. I have filled in 2 of 7 blanks i

ID: 1780966 • Letter: T

Question

The topic for this question is Work and Energy. I have filled in 2 of 7 blanks incorrectly. Please find them.

Conceptual Question 10.22 Part A During its trip to the bottom, is the thermal energy created in the ramp and the crate greater than, less than, or equal to the crate's loss of gravitational potential energy? Explain. Jason slides a large crate down a ramp from a truck to the ground. To control the crate and keep it sliding at constant speed, Jason backs down the ramp in front of the crate while pushing upward on it. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Reset Help potential equal to greater than If the crate slid down the ramp at a constant speed without Jason pushing back on it (as it could if the angle were adjusted just right) then, by conservation of energy, the increase in translational kinetic energy would exactly equal the loss in gravitational potential energy rotational kinetic But in fact Jason is pushing on the crate in a direction opposite its motion. Thus he is doing (pesitive work on the crate, removing energy from less than the system. positive negative So some of the loss of gravitational potential energy that would otherwise have gone into increasing thermal energy is instead removed from the system, so the increase in thermal energy is actually less than the loss in potential energy. thermal translational kinetic adding energy to removing energy from

Explanation / Answer

When Jason is pushing the crate in a direction opposite its motion then he is doing "negative" work on the crate, removing energy from the system So some of the loss of gravitational potential energy that would otherwise have gone into increasing "translational kinetic" energy is instead removed.

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