A 70-g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm
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A 70-g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm before it comes to rest. Assuming 75 percent of the thermal energy developed by friction goes into the block, how much does the temperature of the block rise? For the metal, c = 0.106 cal/g · °C.
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