An electron moving at 38 x 103 ms in a 13 t magnetic field

Question

Problem: An electron moving at 3.8 x 10³ m/s in a 1.3 T magnetic field experiences a magnetic force of 1.75 x 10^-16 N.

Part I: What angle (in degrees, between 0 and 90°) does the velocity of the electron make with the magnetic field?

Rework your solution from the beginning and check each step carefully.