A small sphere with charge q = -5.00 uC is moving in a uniform electric field that has no y- or z-component. The only force on the sphere is the force exerted by the electric field. Point A is on the x-axis at x = -0.400 m and point B is at the origin. At point A, the sphere has kinetic energy KA = 8.00 x 10^-4 J and at point B its kinetic energy KB = 3.00 x 10^-4 J.
Part A:
What is the potential difference VAB = VA - VB? Express your answer with the appropriate units.
Part B:
Which point, A or B, is at a higher potential?
A
B
Equal
Part C:
Determine the x-component of the electric field. Express your answer with the appropriate units.
Ex = Value
Units