Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 10, Problem 44R
To determine

To explain: why sound travels slower in air at high altitudes than at low altitudes.

Expert Solution & Answer
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Explanation of Solution

Introduction:

The speed of sound in air varies as temperature changes.

The speed of sound in air depends on the temperature, At high altitudes, the air is much colder than at low altitudes. As the temperature increases, the molecules in air move faster as sound wave passes through. Whereas in low altitudes, the molecules in air move slower and hence sound travels with low speed.

Conclusion:

Thus, sound wave travels slower in high altitudes than at low altitudes..

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What Are Sound Wave Properties? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=GW6_U553sK8;License: Standard YouTube License, CC-BY