Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 17 - Waves-II - Problems - Page 512: 92

Answer

We should divide the time in seconds by 3

Work Step by Step

We can assume that the light reaches us instantly. We can find the time it takes the sound to travel $x$ kilometers: $t = \frac{x}{0.343~km/s} \approx 3x$ Then $x \approx \frac{t}{3}$ We should divide the time in seconds by 3
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