The moment of Inertia of a semicircular ring about the centre is $M{R}^2$. Find the $MI$ about a radially perpendicular point $\left(P\right)$ and the axis perpendicular to the plane of the ring as shown in the diagram.

A square plate of side $a=20 \mathrm{cm}$ and mass $M=2 \mathrm{kg}$ is lying on the horizontal plane. What will be the moment of inertia of the plate about an axis in the plane of the plate and at an angle of $\theta =18.6°$ from one of its sides?

A flywheel of mass $10 \mathrm{kg}$ and radius $10 \mathrm{cm}$ is revolving at a speed of $240 \mathrm{rpm}$. Its kinetic energy is