An inventor develops a stationary cycling device by which an individual, while pedaling, can convert all of the energy expended into heat for warming water. what minimum power must be generated if 210 g water (enough for 1 cup of coffee) is to be heated in 14.0 min from 26.0°c to 84.0°c? (1 cal = 4.186 j, the specific heat of water is 4 186 j/kg⋅°c)
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= 60.69 watts
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