In particular, the energy of a photon equals Planck's constant times the frequency of the radiation. Mathematically, this is given by the equation E = hf. Planck's constant is the fundamental constant of quantum theory that determines the scale of the small-scale world.lanck's constant = 6.63 * 10^-34 joule-second (J-s). The total energy in an electromagnetic wave is the sum of the energies of each photon in the wave. The energy of a photon is so small that we usually measure it in electronvolts (eV). One eV is the potential energy of each electron in a 1-volt battery.
A social revolution inevitably encounters an obstacle in the form of the political power of the ruling class. Hence, the first act of a social revolution is political revolution, the attainment of state power by the revolutionary class.
Answer when nations industrialized when cities developed when the first social revolution erupted when the postindustrial society emerged. Weegy: The answer is when the postindustrial society emerged.nswer when man learned how to make fire with the domestication of plants and animals when the plow was invented when cities developed. The domestication of plants led to more stationary settlements during the First Agricultural Revolution Answer False, Expert answered| yumdrea |Points 0|.