Ball A Mass: 0. 45 kg Velocity: 50 m/s Ball B Mass: 0. 45 kg Velocity: 80 m/s Ball C Mass: 0. 45 kg Velocity: 25 m/s Which ball has the greatest momentum? A B C.

answer: a ball

explanation: because it will bounce

the strength of the electric field on the point charge= n/c

the electric field is given by

e=

q=6μc= 6 x 10⁻⁶c

r=100 m

e=

e=5.4 n/c

so the electric field on the point charge= 5.4n/c