Conceptual Physics (12th Edition)

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

Chapter 15 - Think and Solve: 39

Answer

Imagine 100 of the 1-m long bars placed end to end. Each one expands 0.6 cm when heated, so the 100-m bar expands 100 times as much as one bar (0.6 cm for each meter), or 60 cm = 0.60 m. At the end, the heated bar is 100.6 m long.
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