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OpenStudy (anonymous):

Sound travels in air at about 340 m/s. You are standing by a cliff and yell. You hear an echo 4 seconds later. How far is the cliff from your position?

OpenStudy (experimentx):

it will take twice time to come back ... after being reflected form the cliff. it will take 4 s means sound will travel 4 * 340 m so cliff will be 4 * 340/2 m

OpenStudy (anonymous):

Thank You!

OpenStudy (experimentx):

yw

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