Answer
$\lambda=1.3m$
Work Step by Step
We know that,
$v=f\lambda$
This can be written as:
$\lambda=\frac{v}{f}$
We plug in the known values to obtain:
$\lambda=\frac{80}{64}$
$\lambda=1.3m$
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 472: 7b
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