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March 26, 2015

March 26, 2015

Posted by **Diana** on Tuesday, April 9, 2013 at 6:05pm.

It takes 2.30 s for an echo to come back from a sound wave sent to the bottom of a 25 degree C lake. How deep is the lake at this location? (Answer, 3433.9 m)

- PHYSICS - Waves -
**Henry**, Thursday, April 11, 2013 at 7:43pmD = = V*t = 343m/s * (2.3/2) = 394.5 m.

NOTE: If your answer is correct, the lake is 0ver 2 miles deep.

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