Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 16 - Traveling Waves - Exercises and Problems: 11

Answer

(a) $\lambda = 4.2~m$ (b) $f = 48~Hz$

Work Step by Step

(a) We can find the wavelength as: $k = \frac{2\pi}{\lambda}$ $\lambda = \frac{2\pi}{k}$ $\lambda = \frac{2\pi}{1.5~rad/m}$ $\lambda = 4.2~m$ (b) We can find the frequency as: $f = \frac{v}{\lambda}$ $f = \frac{200~m/s}{4.2~m}$ $f = 48~Hz$
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