Mechanical energy mechanical energy of the colliding objects has been converted into an equal amount of heat. Thus, the total energy of the system remains unchanged though the mechanical energy of the system has reduced. A satellite of mass formula_4 at a distance formula_5 from the centre of Earth possesses both kinetic energy, formula_6, (by virtue of its motion) and gravitational potential energy, formula_7, (by virtue of its position within the Earth’s gravitational field; Earth's mass is formula_8). Hence, mechanical energy formula_9 of a satellite is given by If the satellite is in circular orbit, the energy conservation equation can be further
Dalian Minzu University Dalian Minzu University Dalian Minzu University () is located in Dalian, Liaoning, People's Republic of China and directly supervised by the State Ethnic Affairs Commission. Dalian Minzu University was founded in 1997. As the only Nationalities University focusing on technology and applied science, it has grown very rapidly ever since. It is now one of the leading universities in Northeast China. Students of DLNU have won numerous awards in various scientific and technological competitions, including winning Mathematical Contest in Modeling (MCM) 2005, representing China to compete in Robocup 2007, Winning Microsoft Imagine Cup in China 2008 and Second Price internationally