[填空题]
The Moon orbits the Eu 83 ztccym.r1wb5h/3qy;tby2 izb k3arth such i, l p8tcvgtk1a8g8-ybvfd. 2 that the same side always faces the Earth. Determine the ratio of the Moon’s spil,ag8tkb2 cg8 vt 1vi-p8 .fydn angular momentum (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$