A proton moves along the x-axis with vx = 1.0 * 107 m/s. As it passes the origin,

A proton moves along the x-axis with vx = 1.0 * 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the 1x, y, z2 positions (a) (1 cm, 0 cm, 0 cm), (b) (0 cm, 1 cm, 0 cm), and © (0 cm, -2 cm, 0 cm)