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Homework Help: Frequency of waves?

  1. Nov 28, 2007 #1
    A stationary motion detector sends sound waves of frequency 0.0620 MHz toward a truck approaching at a speed of 40.5 m/s. What is the frequency of the waves reflected back to the detector? (Take the speed of sound to be 343 m/s.)

    Please provide a solution rather than just an answer :) I really appreciate any help!
    Last edited: Nov 28, 2007
  2. jcsd
  3. Nov 29, 2007 #2


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  4. Nov 29, 2007 #3


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    brownniegyal: Have you read the forums rules?
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