Mechanical energy nonconservative forces, like frictional forces, will be present, but often they are of negligible values and the mechanical energy's being constant can therefore be a useful approximation. In elastic collisions, the mechanical energy is conserved but in inelastic collisions, some mechanical energy is converted into heat. The equivalence between lost mechanical energy (dissipation) and an increase in temperature was discovered by James Prescott Joule. Many devices are used to convert mechanical energy to or from other forms of energy, e.g. an electric motor converts electrical energy to mechanical energy, an electric generator converts mechanical energy into electrical energy and a
Dalian Boyoung F.C. Dalian Boyoung F.C. Dalian Chanjoy Football Club () is a professional Chinese football club that currently participates in the China League Two. The team is based in Dalian, Liaoning and their home stadium is the 30,775 capacity Jinzhou Stadium. It used to be called Dalian Boyang（大连博阳）. Dalian Chanjoy F.C. was established on 20 August 2015. In January 2016, Dalian Boyang Construction Engineering Co., Ltd. officially bought the Dalian Tornado and changed their name as Dalian Boyang. However, Dalian Boyang failed to enter China League Two due to disadvantageous ranking order and played in the 2016 China Amateur Football League. They