Two small insulating spheres with radius 9.00*10^-2m are separated by a large center-to-center distance of 0.520m . One sphere i
s negatively charged, with net charge -2.40uC , and the other sphere is positively charged, with net charge 3.35uC . The charge is uniformly distributed within the volume of each sphere. a)
What is the magnitude E of the electric field midway between the spheres?
Take the permittivity of free space to be ?0 = 8.85