Solve the following question given below:
Question: What is the radius of the smallest possible circular orbit that a proton with the kinetic energy equal to 3.9MeV can have in a 1 T magnetic field? The mass of a proton is 1.67 x 10-27 kg and its charge is 1.609 x 10-19.
Please show all work and steps to determine the radius of the smallest possible circular orbit.