Question: A point particle with charge q = 4.5 C is placed on the x axis at x = -10 cm. A second particle of charge

A point particle with charge q = 4.5 µC is placed on the x axis at x = -10 cm. A second particle of charge Q is now placed on the x axis at x = +25 cm, and it is found that the electric field at the origin is zero. Find Q.

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