An electron with a speed of 7.50 x 108 cm/s enters an electric field of magnitude 1.00 x 103 N/C, traveling along the field in the direction thatretards its motion.
(a) How far will the electron travel in the fieldbefore stopping momentarily?
m
(b) How much time will have elapsed?
s
(c) If, instead, the region of electric field is only 8.00 mm long (too small for the electron to stop),what percentage of the electron's initial kinetic energy will belost in that region?
%