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How long will it take for that echo to be heard?

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Given that the speed of sound is 1120 feet per second, if a person makes a sound that bounces off an object 112 feet away, how long will it take for that echo to be heard?

posted Oct 28, 2015 by Karan Joglekar

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1 Answer

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112*2/1120=0.2 seconds

answer Jul 29, 2018 by Hanifa Mammadov



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