k this is supposed to be really difficult cuz its a extra credit problem and i cant seem to get it. Help Plzz
adajett asked: an electron in a computer monitor enters midway between two parallel oppositely charged plates. The initial speed of the elctron is 6.15 X 10^7 m/s and its vertical deflection is 4.70 mm a) what is the magnitude of the elctric field between the plates b) determine the magnitude of the surface charge density [...]