Chemical refrigerants are assigned an R number which is determined systematically according to molecular structure.Common refrigerants are frequently referred to as Freon (a registered trademark of DuPont).hemical refrigerants are assigned an R number which is determined systematically according to molecular structure.
Some Rube Goldberg machines. use a complicated series of actions to simply move an object from. one place to another. Any object that is moving, has what is called kinetic energy; giving. an object more speed means giving it more kinetic energy.
In the human body, ATP, adenosine triphosphate, is broken down to create energy for muscle contraction. The human body creates ATP aerobically and anaerobically. There is one aerobic energy system and two anaerobic energy systems.