Two motors in a factory are running at slightly different rates. one runs at 825 rpm and the other at 786 rpm. you hear the sound intensity increase and then decrease periodically due to wave interference. how much time elapses between successive maxima of the sound intensity

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f