(Solution) - A watt is a measure of power the rate of -(2025 Original AI-Free Solution)

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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 kilowatt-hour.
(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 hours?