An Alpha Particle Is Moving at a Speed of 5

Essay

An alpha particle is moving at a speed of 5 × 10⁵ m/s in a direction perpendicular to a uniform magnetic field of strength 4 × 10^-2 T. The charge on an alpha particle is 3.2 × 10^-19 C and its mass is 6.6 × 10^-27 kg. (a) As the alpha particle moves, its velocity is directed
(b) The magnitude of the force on the alpha particle is