Complete the following sentences to see if you can apply these ideas. If a car is moving to the left with constantvelocity, one can conclude that:.
a) there mustbe no forces applied to the car.
b) the netforce applied to the car is directed to the left.
c) the netforce applied to the car is zero.
d) there isexactly one force applied to the car.

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.

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