Mechanical energy swing because of the work done by the pendulum to oppose these non-conservative forces. That the loss of mechanical energy in a system always resulted in an increase of the system's temperature has been known for a long time, but it was the amateur physicist James Prescott Joule who first experimentally demonstrated how a certain amount of work done against friction resulted in a definite quantity of heat which should be conceived as the random motions of the particles that comprise matter. This equivalence between mechanical energy and heat is especially important when considering colliding objects. In an elastic collision,
Dalian Maritime University about 40 students from China and the Southeast Asian countries who are studying at DMU in English under the World Maritime University scholarship, to earn the master's degrees in 14 months. Dalian government offers a number of scholarships to international students who want to pursue higher education at Dalian Maritime University Dalian Maritime University Dalian Maritime University () is a university located in Dalian, Liaoning, People's Republic of China. It is a key maritime institution under the Ministry of Transport of the People's Republic of China, and is a Chinese Ministry of Education Double First Class Discipline University, with Double