A 27-kg copper block is given an initial speed of 25 ms on, Physics

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A 27-kg copper block is given an initial speed of 25 ms on

A 2.7-kg copper block is given an initial speed of 2.5 m/s on a rough horizontal surface. Because of friction, the block finally comes to rest.

a) If the block absorbs 85% of its initial kinetic energy as internal energy, compute its increase in temperature.

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