[填空题]
A figure skater can increase her spin ro)kxt,/n0nk 0 waf7pgotation rate m/apnmv wqd6r 8c5+ aj/v5hjjwm(/z,from an initial rate of 1.0 rev every 2.0 s to a finalmvpdvjm(q6 r w+z/j8/5h5nc,/jam w a 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? $kg \cdot m^2$