2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85781As an illustration of the concept of "hidden" mechanical momentum, we consider a coaxial cable one end of which is connected to a battery and the other to a load resistor. The nonzero electromagnetic momentum of this configuration is balanced by the slight difference in the mechanical momenta of the conduction electrons in the inner and outer conductors.4 pages, no figuresClassical Physicstext