Answer the following problems and show complete solution. Thank you.

Topic : Electric Potential Energy in a Uniform Electric Field 1. A point particle of charge 2.5 x 1019 C and a mass of 3.65 x 10^-7 kg in uniform electric field directed to the right. It is released from rest and moves to the right. It is released from rest and moves to the right. After it has traveled 1.45 m, its speed is 35 m/s. Find : a. work done on the particle b. change in the electric potential energy of the particle Topic: Calculating Electric Potential and Potential Difference 2. A particle charge 4 x 10^-9 C is located at a point (0,0) in a certain coordinate system. Assuming all lengths are in meters, calculate the potential of the following points : A (3,3) and B (0,2). How much work is needed to take a particle of charge 2 x 10^-5 C from A to B