On the average force influencing the inclusions in systems with the distributed and the concentrated parameters

Similarity of concepts of the average force, accepted in electrodynamics (pressure of light) and in acoustics (radiating pressure), and also forces of vibrations (string) and average force of the influence on systems with the concentrated parameters, moving in quickly changing fields is stressed. On movement of particles in quickly changing fields, as an example, the identity of definition of average forces in such system and radiating pressure in acoustics is shown. Besides, on a simple example possibility of transportation of particles in points of minimum of potential in an acoustic field by analogy with previously described similar possibility is shown in systems with the concentrated parameters.