Answer to Question #65019 in Physics for Helen

Question

Elsa doesn’t feel like making a snowman2
so she makes some snow jewelry for Anna
instead. The jewelry consists of a straight string of three glittering ice balls and is
really quite fetching. Elsa does great with the snow and ice stuff, but hasn’t gotten
electric charge down yet. The ice ball to the left has a charge of +5q and the ice ball
to the right has a charge of +3q and they are fixed a distance of 9.00 cm apart from
each other. The middle ice ball is free to slide from side to side, so that it winds up in
the position where the net force it experiences is zero (assume that it has a very small
charge itself). What position will this be (i.e., find the value of x)?