The work done by an external force to move a 6.50 uC charge from point a to point b is 0.0240 J. The charge started from rest and had 0.0110 J of kinetic energy when it reached point b.
(a) Find the change in the electrical potential energy of the charge when it was moved from point a to point b.
(b) Find the potential difference, Vba between points a and b.