————— of a two-particle system depends only on the separation between the two particles. The most appropriate choice for the open space in the sentence above is
Kinetic energy
Total mechanical energy
Potential energy
Total energy
For a two particle system the potential energy of the system depends only on the distance between the two particles, not on their individual velocities or positions. Indeed, the potential energy is due to the interaction between the particles, which only depends on their separation distance.
Kinetic energy, on the other hand, depends on the individual velocities of the particles.
The total mechanical energy is the sum of the kinetic and potential energies, but it still depends on the individual velocities and positions of the particles.
Total energy includes all forms of energy in a system, including potential energy, kinetic energy, and other forms such as thermal or electromagnetic energy, but it does not depend solely on the separation between the particles.
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