An echo-sounder in a trawler (fishing boat) receives an echo from a shoal of fish 0.4s after it we sent. If the speed of sound in water is 1500 m/s, how deep is the shoal?

The minimum distance to hear echo (speed of sound in air is 340 m//s )

It takes 2.4 s to record the echo of a sonar. If the speed in water is 1450 m//s , find the depth of the ocean floor.

The echo of a sound is heard after 5 seconds. If the speed of sound in air be 342m/s, calculate the distance of the reflecting surface.

An echo of sound produced by a person, is heard from a distant tower after an interval of 1.5 s. If the speed of sound in air is 330 ms^(-1) , then the distance of the tower from the person is _______ m.

Sound signal of frequency 40 kHz is sent vertically into sea water. The signal gets reflected from the ocean bed and returns to the surface 0.60 s after it was emitted. The speed of sound in sea water is 1500 ms^(-1) . What is the depth of the sea and wavelength of this signal in water.

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 ,

A man standing unsymmetrical position between two mountains and fires a gun. He hears the first echo after 1.5 s and the second echo after 2.5 s. If the speed of sound in air is 340 m/s, then the distance between the mountains will be