The radius of the disk is R, and the mass of the disk is M. Using the parallel axis theorem and theequation for the moment of inertia of a disk about its central axis developed in the previous example, Eq. (8), the moment of inertia of the disk about the specified axis is Fig.
Short Circuits. Short circuits are the second most common reason for breaker tripping and are a more serious concern. Short circuits occur when the black hot wires inside your electrical service panel come in contact with either other hot wires or neutral wires.
Likely electrical causes (Beware electrical, fuel & low compression can cause the same symptoms): First check point gap and condition and fuel filter. This is something that can easily be caused by a weak coil, bad spark plug wires or advances not working. Replace old spark plug wires as a matter of course.