A 110 kg woman stands at the rim of a horizontal turntable with a moment of inertia of 3.3 103 kg m2 and a radius of 2.9 m. The system is initially at rest, and the turntable is free to rotate about a frictionless vertical axle through its center. The woman then starts walking clockwise (when viewed from above) around the rim at a constant speed of 0.47 rad/s relative to Earth. With what angular speed does the turntable rotate? Answer in units of rad/s.