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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A hammer strikes one end of a thick steel rail of length 8.50 m. A microphone located at the opposite end of the rail detects two pulses of sound, one that travels through the air and a longitudinal wave that travels through the rail. (a) Which pulse reaches the microphone first? (b) Find the separation in time between the arrivals of the two pulses.

(a)

To determine
The pulse reaches the microphone first.

Explanation

Sound wave travelling faster reaches a given distance quicker that the sound wave travelling with less speed. Speed of sound in air is 337m/s and the speed of sound in steel is 5950x

(b)

To determine
The separation in time between the arrivals of two pulses

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