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Homework Help: Angular momentum in gravitational field

  1. Mar 15, 2015 #1
    1. The problem statement, all variables and given/known data
    2-10.JPG

    2. Relevant equations


    3. The attempt at a solution
    I can't understand what is ɛ in this problem, and why should we adopt it. Could you explain me please?
     
  2. jcsd
  3. Mar 15, 2015 #2
    Greetings,
    Is that "The Orbital Angular Momentum"?
     
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