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1. Estimate the width of the lowest peak in the example of resonant tunnelling plotted in Figure 5.11, using the attempt frequency and transmission probabilities of the barriers.
2. Derive an approximate formula for the phase of the transmission amplitude near a peak in resonant tunnelling. How does it compare with classical resonant phenomena?
A constant 0.28 T magnetic field passes through a loop at an angle of 35 degrees with respect to the normal of the area of the loop. find the flux through the loop
The safe slides with a constant speed if Clyde pushes from behind with 420 {rm N} of force while Bonnie pulls forward on a rope with 285 {rm N} of force. Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
a 4 kg box is pushed up a frictionless 30 degree incline with a force of 40n. this 40 n force is parallel to the
When responding to sound, the human eardrum vibrates about its equilibrium position. Assume an eardrum is vibrating with amplitude of 7.1x10-7 m and a maximum speed of3.8x10-3 m/s.
The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. If sound waves have wavelengths 65-cm in the tube, what is the frequency (in Hertz) of the tuning fork? Never include units with a numerica..
Find the temperature rise of the bullet assuming the impact occurs so rapidly that the impact process can be considered to be adiabatic. For lead, use fu = 0.0130(T) in Btu/lbm, where T is in °F or R.
If our sun/solar system was formed in a dense cluster (as opposed to a sparse cluster) where are the rest of the stars. Is it possible to find any of them? How can radioisotopes be used to determine we were blasted by a supernova billions of years ag..
A beam of protons at an accelerator creates a current of 120 mu/A. how many protons strike the target in 30.0 s
However, if the pump is primed [i.e., filled with water as in Fig. P12.24(b)], the pump does start pumping water when turned on. Explain this behavior.
The hole on a level, elevated golf green is a horizontal distance of 125 m from the tee and at an elevation of released 10.4 m above the tee, What was the initial speed of the ball
A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 9.6 × 1012 m/s2 in a machine. What is the increase in its kinetic energy
Compute the voltage drop along a 28 m length of household no. 14 copper wire (used in 15 A circuits). The wire has diameter 1.628 mm and carries a 14 A current
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