The charge in Box A remains motionless, while the charge in Box B accelerates westward. The charge in Box A accelerates northward, while the charge in Box B remains motionless. The charge in Box A accelerates southward, while the charge in Box B accelerates eastward. A needle-sharp lightning rod protects the top of a tall tower. This rod is connected by a wire to the earth far below.
Moment of inertia is the measure of an object s rotational inertia.
The one that falls fastest while spinning has the larger moment of inertia. The one that falls slowest while spinning has the larger moment of inertia. The protons have north magnetic poles and the electrons have south magnetic poles. The secondary coil of a transformer normally winds in one direction around and around the magnetic core. Instead of going all the way around the core, it would be easier for the wire to go half way around the core and then turn around and head back toward its starting point.