A 15-kg ball is held 3.2 m above the ground and then dropped. If all the energy is converted into heat, how many calories are produced?

Name: A 15-kg ball is held 3.2 m above the ground and then dropped. If all the energy is converted into heat, how many calories are produced?
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Question

Quizplus · Accepted Answer

The potential energy (PE) of the ball is converted into heat. PE = mgh = 15 kg * 9.8 m/s² * 3.2 m = 470.4 J. Converting joules to calories (1 cal = 4.184 J), 470.4 J / 4.184 J/cal = 112.4 cal, approximately 112 cal.

A 15-Kg Ball Is Held 3