An electron moves at 220106 ms through a region in which

Question

An electron moves at 2.20×10⁶ m/s through a region in which there is a magnetic field of unspecified direction and magnitude 7.90×10^-2 T

a/ What is the largest possible magnitude of the acceleration of the electron due to the magnetic field?

b/ What is the smallest possible magnitude of the acceleration of the electron due to the magnetic field?

c/ If the actual acceleration of the electron is 1/4 of the largest magnitude in part (a), what is the angle between the electron velocity and the magnetic field?