Physics, 19.04.2021 20:50 guazet7650
Although not always visible, approximately of the Moon's surface is lit up by the Sun.
A) one third
B) half
C) two thirds
D) one quarter
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 12:30
Which governments provide garbage collection services to homes and businesses
Answers: 3
Physics, 22.06.2019 18:30
Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?
Answers: 1
Although not always visible, approximately of the Moon's surface is lit up by the Sun.
A) one thir...
Mathematics, 20.01.2021 18:20
Biology, 20.01.2021 18:20
Mathematics, 20.01.2021 18:20
History, 20.01.2021 18:20
Computers and Technology, 20.01.2021 18:20
Mathematics, 20.01.2021 18:20
English, 20.01.2021 18:20
Mathematics, 20.01.2021 18:20
Computers and Technology, 20.01.2021 18:20
English, 20.01.2021 18:20
English, 20.01.2021 18:20
History, 20.01.2021 18:20
Mathematics, 20.01.2021 18:20