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a 0.2 kg aluminum plate, initially at 20 C, slides down a 15-m-long surface, inclined a 30 angle to the horizontal. The force of kinetic friction exactly balances the component of gravity down the plane so that the plate glides down at a constant velocity. If 90% of the mechanical energy of the system is absorbed by the aluminum, what is its temperature increase at the bottom of the incline
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