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How they get to the 3rd equation

  1. Dec 4, 2004 #1
    I don't understand hLink how they get to the 3rd equation... I'm completely lost...
     
  2. jcsd
  3. Dec 5, 2004 #2

    mathman

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    (f-f0)/f0=(1-(v/c)2/2)/(1-v/c)-1
    (f=frequency, v=velocity)

    Simplify right hand side to get:(v/c-(v/c)2/2)/(1-v/c)

    Assume v<<c, you end up with v/c.
     
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