[填空题]
A figure skater can increase hex;w1jj)bc5c-da :ce . bfd4 lqr spin rotation rate fru8*f97f jofn,tvuo9 4brdu 6uom an initial rate of 1.0 rev every 2.0 s to a fin8u9u j69ruto*,vd4f ffn o7ubal rate of 3 $rev/s$ If her initial moment of inertia was 4.6 kg*$m^2$ what is her final moment of inertia? How does she physically accomplish this change? $kg \cdot m^2$