A watt is a measure of power (the rate of energy change)
Chapter , Problem 5.18(choose chapter or problem)
A watt is a measure of power (the rate of energy change) equal to 1 J>s. (a) Calculate the number of joules in a kilowatthour. (b) An adult person radiates heat to the surroundings at about the same rate as a 100-watt electric incandescent lightbulb. What is the total amount of energy in kcal radiated to the surroundings by an adult in 24 h?
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