A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If Iâ is the moment of inertia of this object with respect to an axis passing through the center of the rod and perpendicular to it and Iâ is the moment of inertia with respect to an axis passing through one of the masses we can say that .
a. lâ = lâ.
b. lâ > lâ.
c. lâ > lâ

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

The relationship of both of them

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