Treat 1-22 1-48 and 1-51 as a single, three-part problem: (a) 1-22. Show that Planck's constant has dimensions of angular momentum. (b) 1-48. There is also an uncertainty principle for energy and time: AEAt > h Show that both sides of this expression have the same units. (c) 1-51. When an excited nucleus decays, it emits a y ray. The lifetime of an excited state of a nucleus is of the order of 10"2 s. What is the uncertainty in the energy of the y ray produced? (See Problem 1-48.)