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: 49

Answer

(a) The frequency in the water is 440 Hz (b) The wavelength in the water is 3.4 m

Work Step by Step

(a) The frequency of a wave does not change when it travels from one medium into another medium. Therefore, the frequency in the water is 440 Hz. (b) The speed of sound in water is 1500 m/s. We can find the wavelength in the water. $\lambda = \frac{v}{f}$ $\lambda = \frac{1500~m/s}{440~Hz}$ $\lambda = 3.4~m$ The wavelength in the water is 3.4 m.
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