2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85944This paper is directed to the readers who are familiar with the earlier papers by the author on the topic of mass-energy equivalence. A number of important questions about the total energy equation H=mv^2 and its implications are answered qualitatively. The relationship between the equation H=mv^2 and the 4-vector (Minkowski) representation of Special Relativity is discussed in detail. Other issues, such as de Broglie's original formulation of wave mechanics, are also discussed.16 pages, 2 figuresGeneral Physicstext