S4. (7 points) A certain Wheel is built using a solid cylindrical hub of radius R}. and mass Mk, a rim of radius R, and mass M,, and three spokes each having mass MS, that connect them, as shown in the gure {therefore the spokes have length (Rr Ry} . Find the moment of inertia of the wheel Iwhel in terms of these masses and radii and any necessary numerical constants. You do not need to simplify your answer as long as it is clear and as long as it is in terms of these variables