Answer
$90m$
Work Step by Step
A freshwater dolphin sends an ultrasonic sound to locate a prey.
The echo off the prey is received by the dolphin 0.12s after being sent.
t=0.12s
v=1500m/s
$d=V x t= 1500 \times 0.12=90m$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 14 - Sound - Learning Path Questions and Exercises - Exercises - Page 524: 13
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