There is a distribution of charges as evidenced below where 1 = +5.0 and 2 = 3.0 . If a third charge of magnitude 2.00 nC is placed between the first two charges at a distance of 15.00 cm from the origin along the x-axis,

what is the potential energy of the system? Give the answer in units of J.

Now if we wanted the potential energy of the system to be zero, where should the third charge be placed ? Give the answer in units of cm from the origin along the x-axis.