An electron that has a velocity with x component 1.8 × 10⁶ m/s and y component 2.8 × 10⁶ m/s moves through a uniform magnetic field with x component 0.034 T and y component -0.18 T.
(a) Find the z component of the magnetic force on the electron.
(b) Repeat your calculation for a proton having the same velocity.