[填空题]
The Moon orbits the Earth such that the same sideune86t2h3f +k:u nyem 9klm1o always faces the Earth. Dq 9s.7myqb0*.(h0 m hijvz + :vfitnpsetermine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbitam0qhtz ysj 7sv+ih .vfb. pnm:iq(0*9l angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$