where \(K\) is the total, macroscopic, kinetic energy; \(U\) the sum of all the applicable potential energies associated with the system’s internal interactions; \(E_{source}\) is any kind of internal...where \(K\) is the total, macroscopic, kinetic energy; \(U\) the sum of all the applicable potential energies associated with the system’s internal interactions; \(E_{source}\) is any kind of internal energy (such as chemical energy) that is not described by a potential energy function, but can increase the system’s mechanical energy; and \(E_{diss}\) stands for the contents of the “dissipated energy reservoir”—typically thermal energy.
