Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 7 - Think and Explain: 58


No work, as defined by Fd, is done on the wall because d = 0. However, physiologically speaking, your muscle fibers twitch and you transform your body's chemical reserves of energy into heat, tiring yourself.
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