[填空题]
The Moon orbits the Eart3t8be i9iiy8p 8r .oqih such that ay1 wu)uv l dzs;rl,0,c;kvc )s3e*,ijfz8gp the same side always faces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momen;;c*f) d cg ussjyvrv8 0) wp,1lakuze,3lzi,tum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$