The alpha particle (q = +2e, m = 4.00 u) travels in the circular path of radius 4.50 cm in a uniform magnetic field with B = 1.80 T.
(a) Compute its speed.
(b) Compute the period of revolution.
(c) Compute the kinetic energy in electron-volts.
(d) Compute the potential difference via which it would have to be accelerated to accomplish the energy.