A particle with a mass of 6.64* 10^-27 kg and a charge of +3.2*10^-19 C is accelerated from rest through a potential difference of 2.45*10^6 V. The particle then enters a uniform 1.6 T magnetic field. If the particle's velocity is perpendicular to the magnetic field at all times, what is the magnitude if the magnetic force exerted on the particle?