Physics, 20.09.2019 22:10 brandon2222269
Fermi function. (a) under equilibrium conditions, (i) what is the probability of an electron state being occupied if it is located at the fermi level? at t = 0 k, what is the probability of an electron state being occupied if it located (ii) above the fermi level (iii) below the fermi level (b) plot fermi function for ef=0.5 ev and show the probability of an occupied state δe above ef is equal to the probability of an empty state δe below ef so f(ef +δe) = 1 - f(ef -δe). (c) if the probability of a state being empty at ev - 1kt is equal to the probability of a state being filled at ev - 4kt, where is the fermi level located? (d) if ef is positioned at ec, determine the probability of finding electrons in states ec+3kt (a numerical answer is required). repeat your calculation for the case when ef is positioned at ev and the energy level is located at ev-3kt
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The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end
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Physics, 23.06.2019 02:30
Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.
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Physics, 23.06.2019 04:50
Suppose two stars are located in region a of the h-r diagram shown in the figure below. star c appears much dimmer than star y as seen from earth. which star can be inferred to be nearer to earth and how do you know?
Answers: 1
Fermi function. (a) under equilibrium conditions, (i) what is the probability of an electron state b...
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