A sonar device on a submarine sends out a signal and receives an echo 5s later.Calculate the speed of sound in water if the distance of the object from the submarine is 3625m
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A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m. Velocity of sound in water, v= 2d/t = 2 x 3625/5 = 1450 ms-1.
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time = 5 seconds
distance = 3625 m
total distance travelled by the sonar waves during the transmission and reception in water = 2 d
velocity of sound in water = 2d/t = 2 × 3625/5 = 1450ms
speed = 1450ms
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