An electron is released from rest at a distance of 0.350 m from a large insulating sheet of charge that has uniform surface charge density 4.90×10^-12 C/m .
A) How much work is done on the electron by the electric field of the sheet as the electron moves from its initial position to a point 3.00×10^-2 m from the sheet?
Express your answer to three significant figures and include the appropriate units.
B) What is the speed of the electron when it is 3.00×10^-2m from the sheet?