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the two-point charges of magnitude +3.00μC and -5.00μC are placed along the x axis at x...

the two-point charges of magnitude +3.00μC and -5.00μC are placed along the x axis at x = 0cm and x = 40cm respectively. Where must the third charge, q, be placed along the x axis so that it does not experience any net force because of the other two charges?

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