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Find the direction and magnitude of the net electrostatic force exerted on the point charge q2 in the following figure. (b) How will your answer change if the distance d were tripled? (Note: For three charges, given q= +12 C and d= 16 cm.) 91 = +9 92=-2.09 93 =+3.0q 3 charges, 1.0 JC each, are located on three vertices A, B, C of an equilateral triangle with sides 2 cm each. Another charge q is located at the midpoint of the side BC. Calculate q so that net force on the charge at A due to the charges at B, C and D is zero. 1.0 JC 2cm 2cm 1.0 UC q 1.0 uC