Which of these is the best description of the action-reaction force pair after the space shuttle lifts off from the launch pad? a. the ground pushes the rocket up while exhaust gases push down on the ground b. exhaust gases push down on air while the air pushes up on the rocket c. the rocket pushes exhaust gases down while the exhaust gases push the rocket up d. gravity pulls the rocket exhaust down while friction pushes up against the atmosphere

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 rocks expand when there hot/warm  and contract when they are cold.

Answer (d) the universe had cooled enough for atoms to combine, protons and neutrons were too far apart to form nuclei;

Answervery cold;