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Homework Help: Electric Potential & electron oscillation

  1. Dec 16, 2008 #1
    Hi there!
    I have this problem:
    How to calculate the frequency of the oscillations of an electron from its equilibrium point in this potential:
    V(z)=k/(2ɛ)*[sqrt(z^2 - 9R^2) - sqrt(z^2 - r^2)]*sgn(z)
     
  2. jcsd
  3. Dec 16, 2008 #2

    G01

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    Homework Helper
    Gold Member

    What have you tried so far? You need to show work if you want to get help here.
     
  4. Dec 16, 2008 #3
    I've tried to use the conservation of energy: I can get the length of the oscillation, but I can't get the time.
    I've tried to solve the differential equation F=ma calculating the electric field, but I can't solve it...
    I don't know what to do
     
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