The nitrogen nucleus has spin 1 and a gyromagnetic ratio gn = 0.404. a nitrogen nucleus is placed in a constant magnetic field in the z-direction bo = bo2. an additional, perturbative magnetic field b' = b12 is applied to the system. find the first-order energy shifts due to the perturbation. plot your results as a function of the perturbing field strength, assuming that the constant field is bo 2.35 tesla. how would your calculation differ if a perturbative magnetic field b' = b1î is applied to the system instead?