which of the following ARE unit of energy?
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joule
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calorie
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kilowatt-hour
-
watt
A,B,C
Correct answer
Explanation
Joule is the SI unit of energy. Calorie is a unit of thermal energy commonly used in nutrition. Kilowatt-hour is a unit of energy used for electricity billing (equal to 3.6 megajoules). Watt, however, is a unit of power (rate of energy use), not energy itself.