Actually never mind that part, this ends up in the Hamiltonian you were talking about via potential energy so you already mentioned this mystery. Still, saying “passive gravitational mass is conceptually the same thing as inertial mass” is more accurate than saying “gravitational mass is conceptually the same thing as inertial mass”.
resistance-to-acceleration-caused-by-electromagnetic-forces
Actually never mind that part, this ends up in the Hamiltonian you were talking about via potential energy so you already mentioned this mystery. Still, saying “passive gravitational mass is conceptually the same thing as inertial mass” is more accurate than saying “gravitational mass is conceptually the same thing as inertial mass”.