Question
Asked Feb 11, 2020
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A sound source with a frequency of 1700 Hz moves at 50 m / s towards a wall reflector that moves away from the source at 55 m / s. If the speed of sound is 343 m / s determine the frequency that detects the source of the reflected wave.

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Expert Answer

Step 1

The refracting wall is moving away from the sound source and the source is moving toward the refracting wall.

Thus, from doppler effect,

Physics homework question answer, step 1, image 1

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