A charged particle q=+2.0x10^-6 C with a kinetic energy of KE=0.120J is fired into a uniform magnetic field of magnitude B = 0.15 T. The velocity of the particle is perpendicular to the direction of the magnetic field, so the particle moves in a circular path. If the radius of the circle is r = 3.0 meters, determine its mass m of the moving charged particle. My answer to this problem is 3.38 x 10^-12 what is the correct answer for this?