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At a height of 20 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.130 s later. The air and water temperatures are 20°C. How deep is the lake?

2007-02-14 09:07:33 · 2 answers · asked by CHI U 3 in Science & Mathematics ➔ Physics

2 answers

hmm! no clue

2007-02-14 09:15:40 · answer #1 · answered by Pretty Princess 2 · 0⤊ 1⤋

This is a very good science question. I think I'll ask my students in grade seven.

I'll get back to you soon!!

2007-02-14 17:12:02 · answer #2 · answered by RealArsenalFan 4 · 0⤊ 1⤋