Physics, 28.08.2019 18:00 jackvj4959
Explain what the wall switch does to make the lights go on in your classroom.
Answers: 1
Physics, 22.06.2019 07:30
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.
Answers: 3
Physics, 22.06.2019 08:30
You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm
Answers: 2
Physics, 22.06.2019 16:00
The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2
Answers: 1
Explain what the wall switch does to make the lights go on in your classroom....
History, 14.05.2020 16:57
English, 14.05.2020 16:57
Chemistry, 14.05.2020 16:57
Mathematics, 14.05.2020 16:57
Mathematics, 14.05.2020 16:57
Mathematics, 14.05.2020 16:57
Mathematics, 14.05.2020 16:57
History, 14.05.2020 16:57
Chemistry, 14.05.2020 16:57
Mathematics, 14.05.2020 16:57
Biology, 14.05.2020 17:57
English, 14.05.2020 17:57
English, 14.05.2020 17:57