A proton travels through uniform magnetic and electric fields.The magnetic field is in the negative x direction and hasa magnitude of 3.50 mT. At one instant the velocity of the protonis in the positive y direction and has a magnitude of 1830m/s. At that instant, what is the magnitude of the net force actingon the proton if the electric field is (a) in thepositive z direction and has a magnitude of 5.10 V/m,(b) in the negative z direction and has amagnitude of 5.10 V/m, and (c) in the positivex direction and has a magnitude of 5.10 V/m?
