A particle has 3 x 10^15 eV has a charge of 3uC is placed on a certain field. a. solve for electric potential difference, assuming the energy flow comes form a higher value going to 0
b. Solve for velocity of particle
c. solve for equipotential if the other point has an electric potential of 5V less than the answer in a.

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.