Point A is at position (4j -3k)cm. Point B is at position -3cm k. Point C is at position (3i -2j + 5k) cm. Point D is at position 4cm j.Charges of -4 and +5uC are at A and B respectively. What is the electric potential energy of an electron at D?
e= 1.6x10^-19C and k=9x10^9N m^2/C^2