Three point charges are arranged along the x axis. Charge q_{1} = -4.70{\ m nC}

Question

Three point charges are arranged along the x axis. Charge q_{1} = -4.70{ m nC} is located at x= 0.200{ m m} and charge q_{2} = 3.00{ m nC} is at x = -0.300{ m m} . A positive point charge q_{3} is located at the origin. 1.What must the value of q_{3} be for the net force on this point charge to have magnitude 4.30mu { m N} ? 2.What is the direction of the net force on q_{3}? 3.Where along the x axis can q_{3} be placed and the net force on it be zero, other than the trivial answers of x = + infty and x = - infty?

Explanation / Answer

5.10 nC towards q1 at .100 m from origin

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