Find the rotational inertia of the system of point particles shown in the figure assuming the system rotates about the (a) $x$ -axis, (b) $y$ -axis, (c) z-axis. The $z$ -axis is perpendicular to the $x y$ -plane and points out of the page. Point particle $A$ has a mass of $200 mathrm{g}$ and is located at $(x, y, z)=(-3.0 mathrm{cm}, 5.0 mathrm{cm}, 0)$ point particle $B$ has a mass of $300 mathrm{g}$ and is at $(6.0 mathrm{cm}, 0, 0)$, and point particle $C$ has a mass of $500 mathrm{g}$ and is at $(-5.0 mathrm{cm},-4.0 mathrm{cm}, 0) .$ (d) What are the $x$ - and $y$ -coordinates of the center of mass of the system?