A proton is traveling horizontally to the right at4.20×106 m/s.
A) Find the magnitude of the weakest electric field that canbring the proton uniformly to rest over a distance of 3.50 cm.E=___ N/C
B) What is the direction of this electric field?
C) How much time does it take the proton to stop after enteringthe field? t=____ s
D) What minimum field magnitude would be needed to stop anelectron under the conditions of part A? E=___ N/C
E) What is the direction of the field in part D?
