An explosion occurs at the end of a pier. The sound reaches the other end of the

Question

An explosion occurs at the end of a pier. The sound reaches the other end of the pier by traveling through three media: air, fresh water, and a slender metal handrail. The speeds of sound in air, water, and the handrail are 350, 1440, and 5170 m/s, respectively. The sound travels a distance of 190 m in each medium. (a) After the first sound arrives, how much later does the second sound arrive? (b) After the first sound arrives, how much later does the third sound arrive?

(a) Number Units s
(b) Number 0.5033 Units s

Explanation / Answer

first sound arrives at, t= 190 / 5170 = 0.036 s next sound arrives at, t= 0.132 s last sound arrives at, 190/350 = 0.542. a. 0.096 s b.0.506 s

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