A positron (q = +e) moves at 4.3x10^7 m/s in a magnetic field of magnitude 0.52 T. The magnetic force on the positron has magnitude 2.0x10^-12 N.
a) What is the component of the positron's velocity perpendicular to the magnetic field?
m/s
b) What is the component of the positron's velocity parallel to the magnetic field?
m/s
c) What is the angle between the velocity and the field?