A fishing boat using sonar detects a school of fish 190 metres below it. How much time elapsed between sending the ultrasonic signal which detected the fish and receiving the signal's echo? (Speed of sound in sea water = 1,520 m/s. )
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Answered by
86
u=2s/T
1520=2*190/T
T=380/1520=1/4
=0.25seconds...
plzz mark it as a brainliest answer
1520=2*190/T
T=380/1520=1/4
=0.25seconds...
plzz mark it as a brainliest answer
Answered by
25
Answer:
We know that , depth = velocity X Time ÷2
Time=2d÷v
T=2×190÷1520 = 380÷1520 = 0.25s
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