A proton moves with a velocity of v = (2i 4j + k) m/s in a region in which the magnetic field is B = (i + 2j 3k) T. (i, j and k are unit vectors in...

A proton moves with a velocity of v = (2i 4j+ k) m/s in a region in whichthe magnetic field is B = (i + 2j 3k)T. (i, j and k are unit vectors in the x, y and zdirections). What is the magnitude of the magnetic force this charge experiences?