Physics, 12.07.2019 18:30 jaksmmwlqlzm
accessible states and average values recall the energy levels of a one-dimensional harmonic oscillator with frequency w: 2 using hw as the unit of energy and measuring energy from the zero-point energy hu/2, the above levels can be written as en ξ n, n=0, 1.2, . . consider a fictitious one-dimensional system, where two noninteracting bosons are confined in a harmonic oscillator potential. noninteracting means that each boson can take any of the energy levels in eq. (2) independently of the other. the two bosons can be distinguished by their colour, red (r) and blue (b). the total energy of the system u is given by the sum of energy of the two bosons, uenr tenpnr+nb, where nr and np can take any nonnegative integer. (a) suppose that the total energy of the system is fixed to be u = 6, enumerate all the microscopic/quantum-mechanical states accessible to the system and evaluate the average value of nr、(nr) (b) now consider having three bosons in the system, which are distinguished by their colour, red (r), blue (b), and green (g). enumerate all the microscopic states accessible to the system for the total energy u 6 and evaluate(nr)
Answers: 3
Physics, 22.06.2019 04:50
Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?
Answers: 1
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 23.06.2019 00:00
Boiling water is an example of physical change. true or false
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Physics, 23.06.2019 02:00
Two technicians are discussing a starter that clicks repeatedly when the key is turned to the crank position. technician a says the solenoid hold-in winding is open. technician b says the solenoid pull-in winding is open. who is correct?
Answers: 2
accessible states and average values recall the energy levels of a one-dimensional harmonic o...
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