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Consider an electron in an infinitely deep one-dimensional potential well of width Lz =1 nm . This electron is prepared in a state that is an equal linear superposition of the first three states. Presuming that oscillations in wavefunction amplitude lead to oscillations at the same frequency in the charge density, and that the charge density at any point in the structure give rise to radiated electromagnetic radiation at the same frequency, list all of frequencies (in Hertz) of radiation that will be emitted by this system.
Two teams of workers assemble automobile engines at a manufacturing plant in Michigan. Quality control personnel inspect a random sample of the teams assemblies and judge each assembly to be acceptable or unacceptable.
one of a handful of planned air car models can hit 68 mph and has a range of 125 miles. it will take only few minutes to refuel at gas station equipped with costume air compressor unit. it should cost around $2 to fill the car's carbon-fiber tanks..
To analyze electric circuits, it is often necessary to solve simultaneous equations. To find the voltages Va, Vb, and Vc at nodes a, b, and c, the equations are 2(Va-Vb) + 5(Va-Vc) - e^(-t) =0 2(Vb-Vc) + 2Vb + 3(Vb-Vc) =0
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 2.00 cm below the aim point. A. What was the bullet's flight time B. What was the bullet's speed as it left the barrel
A 20-Hp, 240VDC, 4-pole Shunt motor operates at rated load and 1700rpm and an efficiency of 88%. It has armature resistance of 0.2Ω and field resistance of 240Ω. Find: a)Power input to the motor b)IFLA of the motor
A tank circuit coil is operating at a resonance frequency fres = 20 MHz; The circuit must operate with a bandwidth of 200 kHz. What is quality factor, Q, for the coil
If the cost of heat rises by $200 per year (uniform gradient) after the next year and the owner plans to keep the present building for 15 more years, if the interest is 10% per year, what is the cost of heat without the installation
The power transfer in a transmission line is governed by the equation P = VS * VR * sin\(\delta\)/X line. Basedon this equation what is the maximum power transfer that can be achieved, and what is its value if VS =VR = 1.0p.u
What is the bandwidth occupied by this signal, and the noise bandwidth of the receiver for this signal? Find the BER at the receiver output and the average time between errors.
Consider an impedance Z = (1 + j) Ohms. The voltage phasor across it is 1 V. What is the apparent power consumed on this impedance. b-) What is the real power consumed on the previous load.
A PLL frequency synthesizer has an output frequency of 470 MHz. A divide-by-10 prescaler is used. The reference frequency is 10 kHz. What is the frequency step increment
Design a current divider that will provide a 1/3-2/3 current splitting ratio. Use resistance in kilo ohm range. Redesign the current divider so that the resistors are less than 100 ohms but maintain the same 1/3-2/3 splitting ratio.
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