College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Chapter 2, Problem 55PE
Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return. (a) Neglecting the time required for sound to travel up the well, calculate the distance to the water if the sound returns in 2.0000 s. (b) Now calculate the distance taking into account the time for sound to travel up the well. The speed of sound is 332.00 m/s in this well.
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Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return.
(a) Neglecting the time required for sound to travel up the well, calculate the distance (in m) to the water if the sound returns in 2.1500 s.
m
(b) Now calculate the distance (in m) taking into account the time for sound to travel up the well. The speed of sound is 338.30 m/s in this well.
m
The speed of sound at sea level is 340.29 m/s if lightning strikes 13.5 miles away, how long (in minutes) does it take for the sound of the thunder to reach you? (use the speed as a conversion factor.) The answer must be given in only one equation.
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Chapter 2 Solutions
College Physics
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