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Physics, 21.11.2019 05:31 samueltaye
Ahiker 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 3.7s\; s after shouting. the speed of sound in air is 343 m/s\rm m/s. determine the length of the lake. express your answer to two significant figures and include the appropriate units.
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