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Studying Help Electric charges

  1. Apr 6, 2005 #1
    A barium nucleus has a charge of q = +56e (where e is the proton charge).
    a. find the potential V at a radius of 10-12 m from the Nucleus. If a Proton is released from this point, how fast will it be moving when it is 1 m from the nucleus? Note: Assume V (infinity=0)
    Any help?
  2. jcsd
  3. Apr 7, 2005 #2
    I suggested in some of you other threads gaussian pill box. Learn to use it and love it. As an undergrad it looks like you have 1 or two more semsters of E&M and it wont go away. It might chagne a little though
    \nabla \vec{E} = \frac{\rho}{\epsilon_0}
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