[填空题]
The Moon orbits the Eagv-;;l8vsreh0jmr +,pa i w9 drtvb e (gnntv1 .4o7w;xph such that the same side always faces the Earth. Determine the ratio of the Moon’s spin angul.v 7w(bnotp; 4gne1 xvar momentum (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$
