Answers: 1
Physics, 22.06.2019 00:00
Name three different units of energy used to measure heat and describe what type of situations each is usually used.
Answers: 2
Physics, 22.06.2019 06:30
Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.
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 17:10
As the distance from a magnet increases, what happens to the magnet force?
Answers: 1
What bodily function does metabolism affect...
Chemistry, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Biology, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Physics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Social Studies, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Mathematics, 10.09.2020 07:01
Physics, 10.09.2020 07:01