College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 60

(a) Calculate the angular momentum of the Moon due to its orbital motion about Earth. In your calculation use 3.84 × 10 8 m as the average Earth Moon distance and 2.36 × 10 6 s as the period of the Moon in its orbit. (b) If the angular momentum of the Moon obeys Bohr's quantization rule ( ), determine the value of the quantum number n. (c) By what fraction would the Earth Moon radius have to be increased to increase the quantum number by 1