When a -3.72*10^-4 C charge moves from point A to point B, its
electric potential energy increases
by 0.218 J. What is the potential
difference between A and B?
Include the correct sign, + or -
(Unit = V)

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.