What is the speed of a proton that has been accelerated from rest through a potential difference of 4.0 kV?
A1.1 106 m/s
B9.8 105 m/s
C8.8 105 m/s
D1.2 106 m/s
E6.2 105 m/s
A1.1 106 m/s
B9.8 105 m/s
C8.8 105 m/s
D1.2 106 m/s
E6.2 105 m/s