Which energy transformations occur when a candle burns?
a toy plane has a mass of 2.5 kg and is 18 m above the ground. it is moving at 4.5 m/s.
how much mechanical energy does the toy plane have?

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.