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    F.Ali's Avatar
    F.Ali Posts: 1, Reputation: 1
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    #1

    Aug 20, 2010, 04:55 AM
    Where can a third charge be placed so that it experiences no net force?
    A 5.7C charge and a -3.5C charge are placed 25 cm apart. Where can a third charge be placed to the it experiences no net force?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Aug 20, 2010, 09:17 AM

    Use



    In each case, the force should be equal. The charges are different though. Now, you should be able to find the distance 'r'. Post what you get! :)
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