If you could show your work and the equations you used, that would be great, thanks :) 1. With her arms spread out, a figure skater can spin at a rate of 2 rev/s with a moment of inertia of 4.1 kg?m^2. What is her new moment of inertia when she brings in her arms and her angular velocity increases to 3 rev/s? 2. How much torque would be required to stop the Earth's rotation over the span of one year? How about one second?