A proton follows a helical path in a uniform magnetic field given by B = (20 + 50 + 30k) mT. At time t =0, the protons velocity is given by v = (20 + 30 +50k) m/s. Find: (a) What is the angle between velocity and magnetic field and the magnetic force on the proton? 4 (b) What will be the time period and the radius of the protons orbit? 4 (c) Find the pitch of the helical path