123 An electron of kinetic energy 3.8 keV moves in a circular orbit perpendicular to a magnetic field of 0.359 T. 1) Find the radius of the orbit. mm Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) Find the frequency of the motion. GHz Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 3) Find the period. ns Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.