PHYSICS PLEASE HELP!
posted by James .
(a)How much work is done by the field in moving the electron through a distance of 7 cm?
J
(b) Through what potential difference will it have passed after moving through this distance?
V
(c) How fast will the electron be moving after it has traveled this distance?
m/s

There is not enough information here.

Suppose an electron is released from rest in a uniform electric field whose magnitude is 4.70 103 N/C.
(a)How much work is done by the field in moving the electron through a distance of 7 cm?
J
(b) Through what potential difference will it have passed after moving through this distance?
V
(c) How fast will the electron be moving after it has traveled this distance?
m/s 
E = 4.7*10^3 N/C
Force = Q E = 1.6*10^19 * 4.7*10^3
work = force * distance = Force*.07 meters
potential difference = E*distance
(1/2) m v^2 = charge * potential difference, m = 9.1*10^31 kg