[填空题]
Calculate the moment of 0xmac nzi-8bz fy+7)epay*tf y b1iy3 7lz+g 2inertia of axl(6 utw9huo)uhp9:0rx h ;ja3+ uhzx bicycle wheel 66.7 cm in diameter. The rim and tire have a ;xz(6p3 +ou u)ht9hw9lx:hu uxh rj0a combined mass of 1.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$