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A -5.00-μC point charge is placed at the 0.0 cm mark of a meter stick and...

A -5.00-μC point charge is placed at the 0.0 cm mark of a meter stick and a 4.00-μC point charge is placed at the 50.0 cm mark. At what point on a line through the ends of the meter stick is the electric field equal to zero?

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