Physics, 30.11.2019 05:31 nikitakhrabkov123
Ashallow groove on the surface of the cortex is called a
Answers: 1
Physics, 22.06.2019 06:20
Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.
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
Ashallow groove on the surface of the cortex is called a...
History, 17.12.2019 23:31
Mathematics, 17.12.2019 23:31
History, 17.12.2019 23:31
Social Studies, 17.12.2019 23:31
World Languages, 17.12.2019 23:31
Mathematics, 17.12.2019 23:31
Mathematics, 17.12.2019 23:31
History, 17.12.2019 23:31
Physics, 17.12.2019 23:31
Physics, 17.12.2019 23:31