[填空题]
The Moon orbits the Earth such that the same side 0v)y x45 cp/xy qcvx:malways pl ,zyt6)0dbdfaces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the latt tlb)yz,d6d0 per case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$