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(a) Show that in the Bohr model, the frequency of revolution of an electron in its circular orbit around a stationary hydrogen nucleus is f = me4/4µ02n3h3.
(b) In classical physics, the frequency of revolution of the electron is equal to the frequency of the radiation that it emits. Show that when n is very large, the frequency of revolution does indeed equal the radiated frequency calculated from Eq. (38.6) for a transition from n1 = n + 1 to n2 = n. (This illustrates Bohr's correspondence principle, which is often used as a check on quantum calculations. When n is small, quantum physics gives results that are very different from those of classical physics. When n is large, the differences are not significant, and the two methods then "correspond." In fact, when Bohr first tackled the hydrogen atom problem, he sought to determine f as a function of n such that it would correspond to classical results for large n.)
A bomber is flying horizontally over level terrain at a speed of 260 m/s relative to the ground and at an altitude of 2.60 km. At what angle from the vertical was the bombsight set
The windings of a motor have a resistance of 4.0 O. The counter emf of this motor when connected to a 120-V line and running at full speed is 104 V. What is the start up current of this motor
A Carnot engine operates between 110oC and 260oC. Find the net work per cycle that this engine is capable of performing
Using the Bohr model what is the radius of the electron orbit in the Hydrogen atom when the electron is in the n = 11 state
Archimedes purportedly used his principle to verify that the king's crown was pure gold by weighing the crown while it was submerged in water.
an air bubble has a volume of 1.35 cm3 when it is released by a submarine 105 m below the surface of a lake. what is
You are examining a flea with a converging lens that has a focal length of 3.50 cm. If the image of the flea is 6.80 times the size of the flea, how far is the flea from the lens
A car speeds along the curved exit ramp of a freeway. The radius ofthe curve is 86 m. A 68 kg passenger holds the arm rest of a car door witha 220 N force to keep from sliding across the front seat of thecar.
A voltage of 10 V is placed on a capacitor with C = 110 pF (picofarads). How much energy is stored in the capacitor
Two cars are (momentarily) side-by-side on the highway, moving in the same direction. Car A is moving with an initial speed of 20.0 m/s, accelerating at a rate of 5.0 m/s/s. At the time of alignment, Car B is travelling at 60 m/s and is slowing at a ..
A mass-spring system oscillates with an amplitude of 3.50 cm. If the spring constant is 241 N/m and the mass is 434 g, Determine the maximum speed of the object
Four blocks EACH of mass m = 10 kg are arranged as shown in the picture, on top of a frictionless table. What is the total force exerted by block 2 on block 3
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