[填空题]
The Moon orbits the ctfb/h3f(fj gfiz /ba1dvk(d9 6 h/ 8uEarth such that the same side always faces the Earth. gc6+q lxeu xw:itoz:ae 0a .4681gjkbDetermine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (I 1i 4e8qe6 alzu.g 6 g0o:ktbaxcxwj:+n the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$