A proton moves through a magnetic field at 21.5% of the speed of light. At a location where the field has a magnitude of 0.00627 T and the proton's velocity makes an angle of 147∘ with the field, what is the magnitude FB of the magnetic force acting on the proton? Use c=2.998×108 m/s for the speed of light and e=1.602×10−19 C as the elementary charge.