Physics, 03.07.2019 02:20 Throwback633
A)when a hydrogen atom is placed in a magnetic field, into how many energy levels is the 5f energy level split? (assume for the purposes of this question that it is only the electron's orbital angular momentum that gives rise to a magnetic interaction.) b)a hydrogen atom is placed in a magnetic field and as a result, the states with ml +2 are found to be separated from the states with ml -2 by an energy difference of 7.6 x 10-4 ev. what is the value of the magnetic field strength? c)a hydrogen atom is placed in a magnetic field. according to the selection rule aml 0 or 1 how many different transitions from the 4d energy level to the 3p energy level are allowed to take place, and how many distinct emission lines would these transitions give rise to? (assume for the purposes of this question that it is only the electron? s orbital angular momentum that gives rise to a magnetic interaction.) d) the universe is filled with blackbody radiation at a temperature of 2.73 k, known as the cosmic microwave background (cmb) radiation. (i) how many cmb photons per cubic meter pervade the universe? (ii) what is the energy density of the cmb radiation? (ii) what is the radiation pressure exerted by the cmb radiation? (iv) what is the average energy of a single photon of cmb radiation? (give your answer in electron volts.)
Answers: 2
Physics, 22.06.2019 10:30
Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
Answers: 1
Physics, 22.06.2019 17:30
Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.
Answers: 3
A)when a hydrogen atom is placed in a magnetic field, into how many energy levels is the 5f energy l...
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