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In Olympic competition, a microphone detects the sound of

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt ISBN: 9780321909107 29

Solution for problem 12E Chapter 20

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

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Problem 12E

In Olympic competition, a microphone detects the sound of the starters gun and sends it electrically to speakers at every runners starting block. Why?

Step-by-Step Solution:

Solution 12E Step 1: Suppose there are 10 runners for a race standing with 1 m distance between each. Suppose, the starters gun is kept 5 metres apart from the track as explained in figure 1. The sound from the starters gun should travel a maximum distance of 14 metres. Speed of sound in air, v = 340 m/s The required for the sound to travel 14 metres would be, t = 14 m / 340 m/s = 0.04 seconds. The sound of the gun will be reached to the last person...

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Chapter 20, Problem 12E is Solved
Step 3 of 3

Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

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