Two small charged spheres are placed in vacuum on the x-axis: q1 = +5.0 µC at x = 0 and q2 = −8.0µC at x = 50cm. A third charge is placed at x = 1cm such that the net force it experiences due to q1 and q2 is zero. What is the value of a? Draw a sketch of the problem and label appropriately

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