Physics, 12.08.2020 06:01 lizbeth232001
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.724 W/m2. What is the maximum value of the magnetic field in the wave
Answers: 3
Physics, 21.06.2019 15:00
Using software, a simulation of a javelin being thrown both on earth and on the moon is created. in both cases, the velocity and angle of projection are kept the same. on earth, the javelin covers a distance y. what distance would it cover on the moon? (the moonās gravity is about 1/6th that of earth.) a. 6y b. 6/y c. y/6 d. (y+6)2
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Physics, 22.06.2019 02:30
Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?
Answers: 2
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 springāmass 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 (ādark absorption linesā)? explain briefly.
Answers: 3
Physics, 22.06.2019 12:00
Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasnāt healed in a long time. what vitamin deficiency most likely caused this symptom?
Answers: 3
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.724...
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