In Fig. 21-22, the particles have charges 91-92-201 nC and 93-94 142 nC, and distance a = 5.7 cm. (a) Find the net electrostatic force on particle 3: Fnet, 30.079 x 0.0231 x > N (b) What is the vector sum of net electric forces acting on particle 1, 2, 3 and 47 Fig. 21-22
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