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For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. Write down an expression for its wave function in terms of the eigenfunctions [(2/L)^1/2]*sin(n*pie*x/L) . What is the average energy of the electron?
A certain light source is found to emit radiation whose peak value has a frequency of 1.83E+15 Hz. Calculate the temperature of the source
Suppose unpolarized light of intensity 244 W/m2 falls on the polarizer in the figure, and the angle in the drawing is 36.0°. What is the light intensity reaching the photocell
A highway curve with a radius of 650 m is banked properly for a car traveling 120 km/h. how much sideways force must the tires exert against the road if the car does not ski
A 3.9 kg stone is tied to a 5.8 m long string and swung around a circle at a constant angular velocity 1.7 1/s. Find the magnitude of the torque about the origin
Consider the posiblity of making a LED from diamond by constructing a pn junction from a diamond doped with boron and a diamond doped with phosphorus. Estimate the wavelength of the light emitted.
In the railroad freight yard, an empty freight car of massmrolls along a straight level track at1.0m/s, Suppose instead that the two cars are at rest after the collision. With what speed was the loaded boxcar moving before the collision if the empt..
A child rides a pony on a circular track whose radius is 4.0m, Find the distance after a complete circuit of the track
While partying in Paris, you throw a glass of champagne off of the Eiffel Tower. how high above the ground are you
A garden hose is attached to a water faucet on one end and a spray nozzle on the other end. Find the gauge pressure of the water
A white billiard ball with mass mw = 1.31 kg is moving directly to the right with a speed of v = 2.87 m/s, What is the magnitude of the final total momentum of the system
A certain metal with atomic mass (2.1 x 10^-25)kg has an interatomic bond with length (2.3 x 10^-10)m and stiffness 42 N/m
The blades of a kitchen blender rotate counterclockwise at 2.2×104 rpm (revolutions per minute) at top speed. find the average angular acceleration of the blades
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