A red photon in the bright light spectrum of hydrogen gas has an energy of 3.03x10^-19 joule. what energy level transition does an electron in a hydrogen atom undergo to produce this photon?

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

What is the momentum of a 2 kg object moving at 15 meters per second

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount