A charge of +2.00 x 10-9 C is placed at the origin, and another charge of +4.00 x 10-9 C is placed at x = 1.5 m. Find the point between these two charges where a charge of +3.00 x 10-9 C should be placed so that the net electric force on it is zero.

"any matter that is a solid has a definite shape and a definite volume. the molecules in a solid are in fixed positions and are close together, although the molecules can still vibrate they cannot move from one part of the solid to another part. as a result, a solid does not easily change its shape or its volume."

I hope this helps ^-^