zahramaljad zahramaljad

08-06-2024
Physics

Answered

20. Figure shows two tall buildings, A and B, that are 80 m apart. A student stands at P so that his distance from building A is 30 m. After clapping his hands once, he hears several echoes. The speed of sound in air is 330 m / s. Calculate the time interval between clapping his hands and hearing.

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