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Consider a well of width a =10 nm confined between barriers of thickness b = 3 nm and height V0 = 0.3 eV. The energy Epk of the resonant state can be estimated from the result for the true well (Section 4.2). Next estimate the transmission coefficient of each barrier at Epk and use this to find the lifetime and width of the resonance.
A coin is placed 15.0 centimeter from the axis of a rotating turntable of variable speed. Find the coefficient of static friction between coin and turntable
Determine the final image distance for each system, measured with respect to lens 2.
A metal wire 1.4 millimeters in diameter and 2 meter long hangs vertically with a 5.6 kilogram object suspended from it. find what is the value of Young modulus for the metal
How long must a 0.70-mm-diameter aluminum wire be to have a 0.48A current when connected to the terminals, What is the current if the wire is half this length
A soccer player 'heads' the size 5 ball deflecting it by 46.0°, and keeps its speed of 15.90 m/s constant. A size 5 ball has a mass of approximately 0.421 kg. What is the magnitude of the impulse which the player must impart to the ball.
The electric field of a sinusoidal electromagnetic wave obeysthe equation E = - (375 (V/m))sin ((5.97 * 10^15(rad/s)) t +(1.99 * 10^7(rad/m))x). What is the amplitude of the electric field of this wave
If in general R were calculated as R=V/I, which curcuit arrangement in part A of experiment would have the smalles ERROR? define.
Two rods of equal length L = 1.51 m form asymmetric cross. The horizontal rod has a chargeof Q = 100.0 C, and the vertical rod a charge of-Q = -100.0 C. The charges on both rods are distributed uniformly along their length.
Two identical uniform bricks of length 26 m are stacked over the edge of a horizontal surface. What maximum overhang is possible for the two bricks (without tipping)
A top is a toy that is made to spin on its pointed end by pullingon a string wrapped around the body of the top. The string has alength of 56 cm and is wound around thetop at a spot where its radius is 1.2 cm.The thickness of the string is negligi..
An 19.3kg box is released on a 36.1o incline and accelerates down the incline at 0.276m/s2. What is the magnitude of the friction force impeding its motion
It is possible to calculate the coefficient of friction between a vehicles tires and the road by measuring the vehicles stopping distance. What is the cars acceleration while braking
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