posted by Don .
An á-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The á-particle moves perpendicular to the magnetic field at all times.
(a) What is the speed of the á-particle?
(b) What is the magnitude of the magnetic force on it?
(c) What is the radius of its circular path?