[填空题]
The Moon orbits the Earth such thajj,bx-4q) w bit the same side always faces the Earwll 6b7:xwgid0 e *kv*th. Determine the ratio gwll:d076 i x vk**webof the Moon’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.) $\times10^{ -6}$