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Homework Help: Electrostatics problem

  1. Feb 28, 2010 #1
    1. The problem statement, all variables and given/known data
    Two point charges are separated by 5 cm. The attractive force between them is 16 N. If the two charges attracting each other have equal magnitude, what is the magnitude of each charge?
    Enter a number.

    2. Relevant equations
    Force =k*(q1*q2/d^2)

    3. The attempt at a solution
    16N=(9*10^9 N*m^2/C^2)(q1*q2/.223 m)
  2. jcsd
  3. Feb 28, 2010 #2
    Just solve for q.
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