8. An excited Hydrogen atom in the n=3 energy level decays to the n=2 energy level and emits a photon of light. If the energies of these two levels are separated by
3.029 x 10-19 J, what will be the wavelength of the light emitted in nanometers?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?