Air Force, facing fighter pilot shortage, offers retention bonuses of up to $225,000. The Air Force estimates that without a serious recruiting effort, it will be short 700 fighter pilots eight years from now -- so it is offering retention bonuses of up to $225,000 to stay in the service for an additional nine years. The deadline to respond to this unusual help wanted ad is Sept 30.
A community for students. Which energy transition may take place in the atom if its electron has absorbed a photon? A.n = 5 to n = 1 B.n = 3 to n = 2 C.n = 5 to n = 2 D.n = 1 to n = 3 E.n = 3 to n = 1 Help me!!! if the electron ABSORBS a photon, that means it must GAIN energy. when electrons RELEASE photons, they drop in energy, which is why we see colors in an emission test.
The photon the electron ejects has an amount of energy that corresponds to the energy state it's jumping from to the one it's falling to, we express this energy in terms of that photon's wavelength. So, when an electron falls from n=3 to n=2, it ejects a photon with a wavelength of about 653 nanometers. That photon eventually travels from the nebula to Earth, where it hits your eye or a telescope or whatever, and appears red. This is reason most emission nebulae look red.