An object with charge +2.0x10-5C is moved from position C to position D in the figure (Figure 1) . q1=q3=+10.0x10-5 C and q2=-20.0x10-5 C. All four charged objects are the system.
a)Determine the initial potential energy of the system.
b)Determine the final potential energy of the system.
c)Determine the change in potential energy.