W is the work done on the system, K , U , and E thare the kinetic, potential, an

Question

W is the work done on the system, K, U, and Ethare the kinetic, potential, and thermal energies of the system, respectively. Any energy not mentioned in the transformation is assumed to remain constant; if work is not mentioned, it is assumed to be zero.

Give a specific example of a system with the energy transformation shown.
WEth

Give a specific example of a system with the energy transformation shown.

A. Rolling a ball up a hill. B. Moving a block of wood across a horizontal rough surface at constant speed. C. A block sliding on level ground, to which a cord you are holding on to is attached . D. Dropping a ball from a height.

Explanation / Answer

B. Moving a block of wood across a horizontal rough surface at constant speed.

W = Ethermal

the amount of work done is the thermal energy

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