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Homework Help: Coulomb force

  1. Jun 20, 2007 #1
    I must comment on the Coulomb force - vectorial & non-vectorial form:

    F=k*((Q1*Q2)/r^2 )
    F=k*((Q1*Q2)/r^2 )*[r] >>>[r] unit vector

    I know that , in case of vectorial form, I can use superposition principle, and use this form when the direction is important for me.
    But what's more?
     
  2. jcsd
  3. Jun 20, 2007 #2

    G01

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    But whats more what? I don't understand what your question is.
     
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