An alpha particle can be produced in certain radioactive decays of nuclei and consists of two protons and two neutrons. The particle has a charge of q = +2e and a mass of 4.00 u, where u is the atomic mass unit, with 1 u = 1.661 x 10^-27 kg. Suppose an alpha particle travels in a circular path of radius 6.60 cm in a uniform magnetic field with B = 1.90 T. Calculate the following values.
(a) its speed
____ m/s
(b) its period of revolution
____ s
(c) its kinetic energy
_____ eV
(d) the potential difference through which it would have to be accelerated to achieve this energy
____V