The mechanical energy in a mechanical system is the summation of its kinetic energy and its potential energy.
Mechanical Energy= Potential Energy +Kinetic energy
Potential energy is defined as the energy stored in a stable object and kinetic energy is defined as the energy of a moving object or energy required in the motion of a object.
The appropriate response is hydrogen ions. It entirely, the core of a hydrogen particle isolated from its going with an electron. The hydrogen core is comprised of a molecule conveying a unit positive electric charge, called a proton.