Problem: A slender, 400- g bar magnet 10.0 cm long has a magnetic moment of 5.60 Am2. It is held at an angle of 45o to the direction of a uniform magnetic field. When released, it begins to rotate about its center with an initial angular acceleration of 5.35e3 rad/s2.
Part A: What is the magnitude of the magnetic field?
I need help to find the magnitude of the magnetic field.