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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Imagine a ringing bell set inside a sealed glass jar. Once all the air is removed and a vacuum is created, the ringing sound is no longer heard. Explain why this happens.
The glass prevents any sound from escaping.
The pressure of the outside air causes the sound to remain within the jar.
The lack of air in the jar causes the ringing to stop.
Without air, the sound waves cannot travel to the ear.
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