[填空题]
Figure 8–53 illustrazrf6:m7ntf(u tes a3 we nbia55n2f9uzha)n $H_2O$ molecule. The O–H bond length is 0.96 nm and the H–O–H bonds make an angle of 104 $^{\circ} $. Calculate the moment of inertia for the $H_2O$ molecule about an axis passing through the center of the oxygen atom
(a) perpendicular to the plane of the molecule, $\times10^{-45 }$ $kg \cdot m^2$
(b) in the plane of the molecule, bisecting the H–O–H bonds. $ \times10^{-45 }$ $kg \cdot m^2$
