From Figure 1, q1 = -12.0 uC, q2 = +5.0 uC, q3 = -8.0 uC, q4 = +20.0 uC and a = 10.0 cm. Calculate the (a) net electrostatic force exerted on q4 in terms of magnitude and direction. (b) net electric field at the center of the square in terms of magnitude and direction

From Figure 1, q1 = -12.0 uC, q2 = +5.0 uC, q3 = -8.0 uC, q4 = +20.0 uC and a = 10.0 cm. Calculate the (a) net electrostatic force exerted on q4 in terms of magnitude and direction. (b) net electric field at the center of the square in terms of magnitude and direction

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Question

From Figure 1, q1 = -12.0 uC, q2 = +5.0 uC, q3 = -8.0 uC, q4 = +20.0 uC and a = 10.0 cm.
Calculate the
(a) net electrostatic force exerted on q4 in terms of magnitude and direction.
(b) net electric field at the center of the square in terms of magnitude and direction