A person hears an echo from the top of a tower, 2.2 sec after the sound is produced. How far away is the tower from the person? Speed of the sound in air is 332m/s?
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We know that v=2d÷t
let v=332
t=22÷10
so d =3652÷10
let v=332
t=22÷10
so d =3652÷10
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