An iron atom has a mass ofm= 9. 273×10−26kg, permanent magnetic dipole moment ofM=1. 8×10−23Am2, and is approximately spherical with radius 1. 4×10−10m. Suppose that an iron atom isheld in place so that its magnetic dipole moment is perpendicular to Earth’s magnetic field (B= 5. 1×10−6T). What is its angular acceleration when first released?