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The figure below shows a system consisting of three point charges, q1 = +1.72 HC, q2 = +4.37 HC, and q3 = +1.72 uC at the vertices of a right triangle of base b = 1.12 cm and height h = 1.98 cm. Find the magnitude and direction of the electric field at point P, which is halfway between charges q1 and q3. Hint: First find the angle, 0, made between the base, b, and the line extending from q2 to point P. h