A Proton Is Projected with a Velocity of 7

Multiple Choice

A proton is projected with a velocity of 7.0 km/s into a magnetic field of 0.60 T perpendicular to the motion of the proton. What is the magnitude of the magnetic force that acts on the proton? (e = 1.60 × 10^-19C)

A) 0 N
B) 3.4 × 10^-16 N
C) 4.2 × 10^-16 N
D) 13 × 10^-16 N
E) 6.7 × 10^-16 N