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The binding energy of an electron trapped to a sulfur double donor S+6 in Si was measured by Prof. Sah and his graduate students at Illinois in 1971 using the photo capacitance transient method they invented and found to be 613.26 meV.
Assume that the static dielectric constant Is valid for screening the As core charge by the valence electrons and Is given by ε1/ ε0 = 11.8.
What is the orbit radius of an electron trapped at the ground state? How many valence electrons are enclosed in the Bohr sphere or in the spherical volume enclosed by the trapped electron orbit? Is the assumption on the static dielectric constant reasonable and why?
a 60 kg skier leaves the end of a ski-jump ramp with a velocity of 24 ms directed 25 degrees above the horizontal.
Consider a single circular loop of wire that carries current I = 1.1 A. What is the radius of the loop
There are four charges, each with a magnitude of 2.0 µC. Two are positive and two arenegative. The charges are fixed to the corners of a 0.33 m square, one to a corner, in such a way that the net force on any charge is directed toward the center o..
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.6N; a second force has a magnitude of 5.0N and points in the negative y direction. Discover the ma..
The figure shows a spherical conducting shell, inner radius a, and outer radius b, with a point charge + Q inside. In case (1) the point charge is at the center of the shell, and in case (2) it is off-center. Use Gauss's law to predict the charge ..
A roller in a sheet-metal processing plant has a diameter of 1.77 m and a mass of 5871 kg. Assume the roller is a solid cylinder. What is the moment of inertia of the roller
Just after each jumps, that person is moving away from the crate with a speed of 4.40 m/s relative to the crate.
In the figure 29-71, a long circular pipe with outside radiusR = 1.87 cm carries a (uniformly distributed) currenti = 10.3 mA into the page. A wire runs parallel to the pipe at a distance of 3.00R from center to center.
A shotputter throws the shot with an initial spped of 15.5m/sat 34.0degree angle to the horizontal. Calculate the horizontal distance travelled by the shot
For a science experiment you need to electroplate a 120nm-thick zinc coating onto both sides of a very thin, 2.5cm X 2.5cm copper sheet. how long will it take the zinc to reach the desired thickness
Inside a cart that is accelerating horizontally at acceleration ~a, there is a block of mass M connected to two light springs of force constants k1 and k2
Calculate the initial velocity for each using the average time of fligh up, the acceleration of gravity and the initial velocity. The average time up for A is 3.18s and for B is 1.87s and using the formula t=Vo Sin(θ)/g.
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