Can someone me with this: once kinetic energy is used to break a bond can we ever get that kinetic energy back? or does it disappear forever?

Which describe reflection? check all that apply. light bounces off a boundary.

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?