What do tire treads, rubber mats, automobile breaks, and tennis shoes have in common.
-they reduce friction
-they are lubricants
-they increase friction
-the reduce static electricity

What are chlorofluorocarbons and what impact do they have on the atmosphere?

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.

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.