Her moment of inertia is initially 1.0 kg m 2 and decreases to 0.2 kg m 2 . The net torque about the axis of rotation is zero. Not if you are willing to keep burning the rocket engines from time to time as you leave. Initial position and initial velocity. The oscillations die out.
Pressure is a scalar.
It has no direction. The large piston of a hydraulic jack has a radius of 0.20 m.