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Chapter 21, Problem 048 In the figure three identical conducting spheres form an equilateral triangle of...

Chapter 21, Problem 048 In the figure three identical conducting spheres form an equilateral triangle of side length d = 16.0 cm. The sphere radii are much smaller than d and the sphere charges are qA = -1.59 nC, qB = -5.78 nC, and qC = +9.30 nC. (a) What is the magnitude of the electrostatic force between spheres A and C? The following steps are taken: A and B are connected by a thin wire and then disconnected; B is grounded by the wire, and the wire is then removed; B and C are connected by the wire and then disconnected. What now are the magnitudes of the electrostatic force (b) between spheres A and C and (c) between spheres B and C?

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