Conceptual Physics (12th Edition)

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

Chapter 12 - Reading Check Questions (Comprehension): 17

Answer

In a properly constructed arch that is shaped like an inverted catenary, compressive forces push the stones in the arch together, and cement is not needed.

Work Step by Step

This is discussed on page 234.
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