Answer
$40\;m/s$
Work Step by Step
The speed of the wave is given by
$v=f\lambda$
or, $v=(400\times0.1)\;m/s$
or, $v=40\;m/s$
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 476: 62e
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