Question
Asked Nov 25, 2019
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At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.110 s later. The air and water temperature are 20 degrees Celcius. How deep is the lake?

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Expert Answer

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Consider the speed of sound in air be va, the speed of sound in water be vw, the depth of lake be d, the height above the water be h, and the time interva...

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V=343 m/s V1481 m/s

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Science

Physics

Kinematics