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# Answer to Question #118243 in Mechanics | Relativity for Yaahas

Question #118243
An echo is heard in 3s.what is the distance of the reflecting surface from the source,given that the speed of sound is 342m/s
1
2020-05-26T12:52:34-0400
"d=\\frac{vt}{2}"

"d=\\frac{342\\cdot 3}{2}=513 \\ m"

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