Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 20 - Traveling Waves - Exercises and Problems: 23

Answer

(a) $\lambda = 3.0~m$ (b) $f = 114~Hz$

Work Step by Step

(a) We can find the wavelength. $\lambda = \frac{v}{f}$ $\lambda = \frac{3.0\times 10^8~m/s}{101.3\times 10^6~Hz}$ $\lambda = 3.0~m$ (b) We can find the frequency of a sound source with this wavelength. $f = \frac{v}{\lambda}$ $f = \frac{343~m/s}{3.0~m}$ $f = 114~Hz$
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