[填空题]
The Moon orbits the Eartl0rkj x)p, b:rxlw 7*yh such tha0 mdnwcbbf5r.oz u;p5h 3 +-ydt the same side always faces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to it 5 0 5bdwc.n3rd+yuz;-pbm hofs orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$