A particle with a charge of +5.20 nC is in a uniform electric field vector E directed to the left. It is released from rest and moves to the left. After it has moved 6.00 cm, its kinetic energy is found to be+3.50x10-6 J.
(a) What work was done by the electric force?
(b) What is the potential of the starting point with respect to the endpoint?
(c) What is the magnitude of vector E?