Protons having a kinetic energy of 5.00 MeV are moving in the positive x-direction and enter a magnetic field of 0.050 T in the z-directions. out of the page and extending from x=0 to x=1.00m . (a) Calculate the y Component of the proton's momentum as they leave the magnetic field.
(b) Find the angle between the initial velocity vector of the proton beam and the velocity vector after the bcam emerges from the field. (Hint: l eV = l.60 times l0-19 J)