In Figure three identical conducting spheres form an equilateral triangle of side length d = 20.0 cm. The sphere radii are much smaller than d, and the sphere charges are qA = ?? 2.00nC, qB = ?? 4.00nC, and qC = + 8.00nC.(a) What is the magnitude of the electrostatic force between spheres A and C? The following steps are then 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 andC?

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C.