A charged particle carrying charge q=1μC moves in uniform magnetic field with velocity v1=106 m/s at angle 45∘ with x-axis in the xy-plane and experiences a force F1=52 mN along the negative z-axis. When the same particle moves with velocity v2=106 m/s along the z-axis, it experiences a force F2 in y-direction. Find
(a) the magnitude and direction of the magnetic field
(b) the magnitude of the force F2 .