# Physics

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A)When point charges q1 = +1.5 ìC and q2 = +5.7 ìC are brought near each other, each experiences a repulsive force of magnitude 0.77 N. Determine the distance between the charges.

B)Two point charges are fixed on the y axis: a negative point charge q1 = -29 ìC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.35 m. A third point charge q = +9.1 ìC is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges has a magnitude of 21 N and points in the +y direction. Determine the magnitude of q2.

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