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Homework Help: Resonance dopplar effect

  1. Dec 16, 2009 #1
    1. The problem statement, all variables and given/known data
    A truck is traveling 70.0 kph away from you. The Driver is blowing a horn with a frequency of 400 Hz, air temperature is 25 degrees celcius.:uhh:

    2. Relevant equations

    doppler effect

    3. The attempt at a solution
  2. jcsd
  3. Dec 16, 2009 #2


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    Gold Member

    This makes it hard to want to help.

    I would suggest you start with the Doppler shift equation and classify the variables involved by unknown and known, then you can think about the physics if you have more unknowns than you can solve for mathematically.
  4. Dec 16, 2009 #3
    Sorry I should clarify. I said none because I can't even figure out how to use the equations I've been given.
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