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Business, 15.12.2020 17:10 struckedblazing

A commuter train passes a passenger platform at a constant speed of 39.2 m/s. The train horn is sounded at its characteristic frequency of 348 Hz. Required:
a. What overall change in frequency is detected by a person on the platform as the train moves from approaching to receding?
b. What wavelength is detected by a person on the platform as the train approaches?

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A commuter train passes a passenger platform at a constant speed of 39.2 m/s. The train horn is soun...
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