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Physics, 22.08.2019 22:30 Maxwell8066
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 0.171 s later. the air and water temperatures are 20°c. how deep is the lake?
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At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. the ec...
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