[填空题]
Calculate the moment of inertia of a bicycle wheel 66.7 cm in di:q.((nitx kua ametey321r . 0khx3x z.l s : tdpx/mh)g:s3yvjnmgkr. The rim and tire have a combined mass of 1p m vh/tzgxk:21 n ym y:k)3r0.3xhx3lsj. dgs.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$