Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 14 - Exercises and Problems: 20

Answer

Please see the work below.

Work Step by Step

(a) We can find the wave number as $k=\frac{2\pi}{\lambda}$ We plug in the known values to obtain: $k=\frac{2\pi}{10.8}=0.58m^{-1}$ (b) As $\omega=\frac{2\pi}{T}$ We plug in the known values to obtain: $\omega=\frac{2\pi}{4.1}$ $\omega=\frac{2\pi}{4.1}=1.5\frac{rad}{s}$
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