An electron with a speed of 850 108 cms enters an electric

Question

Compute all parts of given question:

Question: An electron with a speed of 8.50 108 cm/s enters an electric field of magnitude 1.00 103 N/C, traveling along the field in the direction thatretards its motion.

Part A: How far will the electron travel in thefield before stopping momentarily?

m

Part B: How much time will have elapsed?

s

Part C: If, instead, the region of electric field is only 3.00 mm long (too small for the electron to stop),what percentage of the electron's initial kinetic energy will belost in that region?

%

Please show the work for the calculation so I can understand what I'm doing. Thanks!