College Physics
College Physics
3rd Edition
ISBN: 9780134143323
Author: Knight, Randall Dewey, Jones, Brian, Field, Stuart
Publisher: Pearson,
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Chapter 11, Problem 1CQ
To determine

The energy transfers and transformations that take place while rubbing hands.

Expert Solution & Answer
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Answer to Problem 1CQ

The temperature of hands increases and mechanical energy is converted into heat energy when one hand is rubbed against another vigorously.

Explanation of Solution

When one hand is rubbed against another vigorously, then, due to the movement of one surface against other some loss of kinetic energy will take place. Due to the friction between the surfaces of two hands, the energy is degenerated in the form of heat which causes the loss of kinetic energy. The mechanical energy of the hands is transformed into the heat energy due to which the temperature of the hands is increased and they become warmer.

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Chapter 11 Solutions

College Physics

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