Answer:
On a roller coaster, energy changes from potential to kinetic energy and back again many times over the course of a ride. Kinetic energy is energy that an object has as a result of its motion. Potential energy is the energy an object has as a result of its position
Explanation:
Elemental mercury was first discovered when a mercury oxide<span> was decomposed with heat. forming</span>mercury<span> metal and oxygen gas. is your anwser</span>
Answer:
D. Light energy travels as waves.