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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.
What horizontal force applied at its highest point is necessary to keep a wheel of mass from rolling down a slope inclined at angle to the horizontal
A 120-N child is in a swing that is attached to ropes 2.20 m long. Find out the gravitational potential energy associated with the child relative to her lowest position at the following times.
A tuning fork is set into vibration above a vertical open tube filled with water, What is the frequency of the tuning fork
In a lightning bolt, a large amount of charge flows during a time of 2.6 x 10-3 s. How much charged has flowed during the lightning bolt
The centripetal acceleration of a rotating disk is 5.9 m/s2. The radius of the disk is 0.74 m. What is the angular velocity of the disk
One way to attack a satellite in Earth orbit is tolaunch a swarm of pellets in the same orbit as the satellite but inthe opposite direction. What is the kinetic energy of the pellet in the reference frame of the satellite just before the collision
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance { h} above the bottom of the bowl.
A rock is tossed straight up with a velocity of 40.0 m/s.When it returns, it falls into a hole 11.5 m deep. What is therock's velocity as it hits the bottom of the hole?
A 1000 kg car carrying four 76 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with utmost amplitude when its speed is 18 km/h. The car now ..
An object of mass 0.77 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 16.2 m/s. Find the magnitude of the average force acting on the ball
A neutron star is the remnant left after certain supernovae (explosions of giant stars). Typically, neutron stars are about 20 in diameter and have around the same mass as our sun. What is a typical neutron star density in g/cm^3?
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