An airplane traveling at half the speed of sound emits a sound of frequency 4.52 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? kHz (b) At what frequency does a stationary listener hear the sound after the plane passes? kHz

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter13: Mechanical Waves
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An airplane traveling at half the speed of sound emits a sound of frequency 4.52 kHz.

(a) At what frequency does a stationary listener hear the sound as the plane approaches?
kHz

(b) At what frequency does a stationary listener hear the sound after the plane passes?
kHz

 

Expert Solution
Step 1

Given data:

Frequency of the sound, fs=4.52 kHz = 4.52×103 Hz

Let the speed of sound be v, therefore, Speed of source, vS=v2

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