Which UNIT will the answer to this operation have?
(We're only interested in the units, not the number.)
If the units cancel out, choose "No Unit"
If the operation is not valid, choose "Not Valid"
5 m – 2 kg
m
kg
A) m - kg
B) No Unit
D) Not Valid
Enter

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.

Iwould think it would be efficiency.