[填空题]
Calculate the moment of inq4:(w m x+j mrqv cro*+qc7*hm. 2yzssertia of a bicycle wheel 66.7 cqw 7).+mo- 9pomvkn1 nbii:zzm in diameter. The rim and tire have a combined mass of 1.25 kg. T+:p)o7w1ok-m ivnb .qzn zi m9he mass of the hub can be ignored (why?). $kg \cdot m^2$