The area moment of inertia (also called the second moment of area) defines the resistance of a cross-section to bending, due to the shape of the cross-section. It is a key parameter for the analysis ...

Figure 2 Rotary Motion where the torque applied to an object is equal to its moment of inertia about the rotation axis multiplied by its rotary acceleration. Source: John Dunn. In a rotary motor, the ...

The spin axis precesses at a rate of 44.58 ± 3.3 arcseconds per year, which gives a normalized moment of inertia of 0.337 ± 0.024 and yields a rough estimate of the size of the core.