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
Xinggong Subdistrict, Dalian Xinggong Subdistrict, Dalian Xinggong Subdistrict () is a township-level division of the north of the Shahekou District of Dalian, Liaoning, China. Xinggong Subdistrict is first and always well known as Xinggong Street or Xinggong Jie () because of the important and famous street which Dalian people always call by "Xinggong Street" instead of "Xinggong Subdistrict" where Xi'an Road Commercial Zone is. Xinggong Subdistrict was also an important Japanese (Kwantung Leased Territory) machi called by where was. The area of Xinggong Subdistrict is 4 km. It has 16 villages/communities like Xingxin Community, and 256 neighborhoods/community groups. Until 2016, the population of