Repeat Problem, but now let the left-hand sphere have positive charge Q and let the right-...

Repeat Problem, but now let the left-hand sphere have positive charge Q and let the right-hand sphere have negative charge −Q.

Problem:

Positive charge Q is distributed uniformly over each of two spherical volumes with radius R. One sphere of charge is centered at the origin and the other at x = 2R (Fig.). Find the magnitude and direction of the net electric field due to these two distributions of charge al the following points on the x-axis: (a) x = 0; (b) x = R/2; (c) x = R; (d) x = 3R.

Figure: