Conceptual Physics (12th Edition)

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

Chapter 20 - Think and Explain: 48

Answer

Bats.

Work Step by Step

The wave speed (i.e., the speed of sound) is frequency multiplied by wavelength. Higher frequencies of sound, those heard by bats, correspond to shorter wavelengths.
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