8. a force of 80 pounds on a rope is used to pull a box up a ramp inclined at 100 from the horizontal. the rope forms an angle of 330 with the horizontal. how much work is done pulling the box 25 feet along the ramp?

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9