[填空题]
The Moon orbits the Earth such0gscny ajxylz 8uil)k/8n 4)* that the same sideub( n+ phjmu b,tieop/dk 1/n qn27)b* always faces the Earth. Determine the ratio of the Moon dpt/un n7,(um kne2)p/qbob+h1 bj*i’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$