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An unbelievably LOUD car alarm at 4:12 AM at the intersection of Jewel Avenue and 150th...

An unbelievably LOUD car alarm at 4:12 AM at the intersection of Jewel Avenue and
150th Street sends out a pure tone at 400 s-1. The speed of sound is 343 m/s. What
frequency is heard from:
a) a car racing TOWARD it at 50 m/s (112 mph)
b) a car racing AWAY from it at 50 m/s (112 mph)

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Answer #1

@ Bg doppler formula F = 343 x 400 343-50 F 468.26 st F= 343.5X400 [f= 349.11 st

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