A charged particle (mass = 4.0 ug, charge = 5.0 uC) moves in a region where the only force on it is magnetic. What is the approximate magnitude of the acceleration of the particle at a point where the speed of the particle is 5.0 km/s, the magnitude of the magnetic field is 10.0 mT, and the angle between the direction of the magnetic field and the velocity of the particle is 40°?