Moment of Inertia--Rectangle -- from Eric Weisstein's World of Physics

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Moment of Inertia--Rectangle

Consider an ellipse of mass M and semiaxes lengths a and b. The surface density is then

(1)

and the moment of inertia tensor is

(2)

(3)

Moment of Inertia--Rectangular Parallelepiped, Routh's Rule

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