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.
The anaerobic energy system is the energy system of choice for the 100m sprinter. Anaerobic means without oxygen. Our bodies can create anaerobic energy in two ways through the: 1  immediate anaerobic energy system, and; 2  short-term anaerobic energy system.