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Electric force due to point charges

  1. Sep 13, 2010 #1
    1. The problem statement, all variables and given/known data
    3 point charges are fixed in place in the right triangle shown below, in which q1= 0.67 microC and q2= -0.67 microC. What is the electric force on q3 with +1.0 microC due to the other two charges?
    Magnitude?
    direction, measured counterclockwise from the +x axis?

    **HYP=10cm or .1m (q1-q3)
    **Opp=8cm or .08m (q1-q2)


    2. Relevant equations
    [k (q1) (q1)]/d^2
    k= 8.99e9

    3. The attempt at a solution
    f13= (8.99e9 * .67e-6 * 1e-6)/ .1^2 <-- shouldn't this provide the magnitude from q1 & q2 on q3?
     
    Last edited: Sep 13, 2010
  2. jcsd
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