An object with a net charge of $+25{10}^{-6}C$ sits at the origin of a coordinate system and an object with a net charge of $+44{10}^{-6}C$ sits at $x=0\mathrm{.}5m.$ At what point between the charges can a third charged object be placed so that it experiences no net force?

m

Hint:

Notice that the distances between "particle a$"$ & the third charge and between the third charge & "particle b$"$ will be different.