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A motorcycle and a police car are moving toward one another. The police car emit

ID: 2211565 • Letter: A

Question

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 532 and has a speed of 28.0 . The motorcycle has a speed of 14.0. What frequency does the motorcyclist hear? I did 532* [340/ (340-28)] and got 580 Hz... it says my answer is close but i may have gone wrong in rounding somewhere.. I then did it with 532* [343/ (343-28)] and got 577.. it said the same thing... i'm not sure where I am going wrong but I would really appreciate the help!! Thanks

Explanation / Answer

observer and source moving towards each other. f x (c + v)/(c - v1) = f1 f1=532*[340+14]/[340-28] f1=603.61Hz

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