Physics. A female skater is spinning at 1 rev/s with her arms outstretched so that her moment of

Question

A female skater is spinning at 1 rev/s with her arms outstretched so that her moment of inertia is 3.6 kg by m squared. She then pulls her arms to her sides, which reduces her moment of inertia to 1.2 kg by m squared. What is her angular velocity?