[填空题]
The Moon orbits the Earth such that g drcvoc2es660th,phm: ub.9the same side always faces f (gifre(kf ,c7hz:b2the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon a (ri,f zkh efb:2fc(7gs a particle orbiting the Earth.) $\times10^{ -6}$