[填空题]
Calculate the moment onn-;zpgmc/ * y 1 aq jrizp1h 2h,xqo;pcwib1gr v18;(kvj) ;kf inertia of a bicycle wheel 66.7 cm in diameter. The rim and tire have a combined mass of 1.25 kg. The mass of the hub can v8p iwjg(h p;xor)rzhk1c; av1qb1j ,1kqi2; be ignored (why?). $kg \cdot m^2$