Answer
$f=240 Hz$
Work Step by Step
For frequency, we can use the following relation:
$v=f\lambda$
$f=\frac{v}{\lambda}$
putting the values
$f=\frac{140}{0.60}=240 Hz$
$f=240 Hz$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 16 - Waves-I - Problems - Page 475: 49c
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