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QUESTION
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo...
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 1.44 s after shouting. Determine the length of the lake. Assume the speed of sound to be 340 m/s.
