Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with their diameters (see Figure (0)). The magnitude of the electrostatic force acting on sphere 2 due to sphere 1 is F = 5.4 N. Suppose now that a third identical Sphere 3, having an insulating handle and initially neutral, is touched rst to sphere 1 (see Figure 03)), then to sphere 2 (see Figure (c)), and nally removed (see Figure (d)). What is the magnitude of the electrostatic force F' that now acts on sphere 2? J "i3 46) @> 8 in J {h l a) 8 39 (941