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Special Relativity: Doppler Effect?

  1. Dec 7, 2013 #1
    1. The problem statement, all variables and given/known data
    f4i45x.png


    2. Relevant equations

    Shown below

    3. The attempt at a solution
    j7yur8.png

    I know I probably did something wrong...but what?
     
  2. jcsd
  3. Dec 7, 2013 #2

    mfb

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    Solving for v went wrong. As you did not provide steps of this, I cannot tell what exactly.
     
  4. Dec 7, 2013 #3
    Ahhhh! I subtracted by 550 by accident. However, is my procedure correct?
     
  5. Dec 7, 2013 #4

    mfb

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    Looks correct.
     
  6. Dec 7, 2013 #5
    b6ekaf.png
    How does this look?
     
  7. Dec 8, 2013 #6

    mfb

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    Staff: Mentor

    Looks good.
    Certainly the fine for the red light would have been cheaper.
     
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