Answer
The frequency is $400~Hz$
Work Step by Step
We can find the frequency:
$\lambda~f = v$
$f = \frac{v}{\lambda}$
$f = \frac{120~m/s}{0.30~m}$
$f = 400~Hz$
The frequency is $400~Hz$
College Physics (4th Edition)
by Giambattista, Alan; Richardson, Betty; Richardson, Robert
Published by
McGraw-Hill Education
ISBN 10:
0073512141
ISBN 13:
978-0-07351-214-3
Chapter 11 - Problems - Page 428: 16
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