Physics, 13.11.2020 16:50 mooncake9090
With the aid of a well labeled diagram, briefly describe how you can determine the volume of an object which floats on a liquid such as a cork.
Answers: 2
Physics, 22.06.2019 06:30
Which one of the following research methods can show cause and effect
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 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your
Answers: 2
With the aid of a well labeled diagram, briefly describe how you can determine the volume of an obje...
History, 06.07.2019 09:00
Chemistry, 06.07.2019 09:00
Mathematics, 06.07.2019 09:00
Chemistry, 06.07.2019 09:00
History, 06.07.2019 09:00
Mathematics, 06.07.2019 09:00
Biology, 06.07.2019 09:00
History, 06.07.2019 09:00