[填空题]
A figure skater can vcxgi53al 5r0vjog:* increase her spx7*t10l er fufin rotation rate from an initial rate of 1.0 rev every 2.0 s to a finalrx l17ef u0t*f 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? $kg \cdot m^2$