Charge 1 (+Q) is at the point (0,a). Charge 2 is at the point (0,-2a).
(a) Find the electric force (magnitude and direction) felt by Charge 1 due to Charge 2.
(b) Find the electric field (magnitude and direction) at the origin created by both charges (in other words, find the net electric field).
(c) Is there a point on the x-axis where the total electric field is zero? If so, where? If not, explain briefly.
(d) If a small negative charge, -q, of mass m were placed at the origin, determine its initial acceleration (magnitude and direction).
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