An alpha particle is composed of 2 protons and 2 neutrons, equivalent to the nucleus of a helium atom. However, the aplha particle has no electrons so its mass is slightly less than that of a helium atom (malpha = (6.645 X 10-27)kg < mhelium). Suppose an alpha particle has been created with a kinetic energy of (1.50 X 106) eV inside a vacuum chamber with a uniform magnetic field. If the magnetic field has a strength of 0.500 T and it is perpendicular to the velocity vector, what is the radius of curvature of the path the alpha particle follows?