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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?
The tangential speed of a particle on a rotating wheel is 3.5m/s. how long will the particle take to make one revolution
An observer moving toward Earth with a speed of 0.96 notices that it takes 5.2 for a person to fill her car with gas. Assume, in its place, that the observer had been moving away from Earth with a speed of 0.80.
At what temperature is the diameter of the hole equal.
For the spherical distribution: A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
determine the upward force on an airplane's wing if the average flow speed of air is 192 m/s above the wing and 164 m/s below the wing. The density of the air is 1.5 kg/m3 and the area of each wing surface is 26 m2.
Sunlight falls on two polarizers with their polarization axes oriented 57° to one another. What fraction of the light intensity is transmitted
A proton is at the origin and an electron is at the point x= 0.35nm , y= 0.34nm .Find the electric force on the proton.
A car drives north at 48 for 10 and then turns east and goes 5 at 62 . Finally, it goes southwest at 24 for 6. Determine the cars displacement.
In a physics demonstration, two rubber balls are dropped down a tube towards the ground,with the lighter ball behind, How high does the light ball rise after the two collisions
Two 1.90-cm-diameter disks spaced 2.10mmapart form a parallel-plate capacitor. The electric field between the disks is 5.10×105V/m, What was the electron's speed as it left the negative plate
When rebuilding her car's engine, a physics major must exert 450 N of force to insert a dry steel piston into a steel cylinder at a constant velocity. What is the normal force between the piston and cylinder
A proton is moving through a magnetic field of strength 2 kT with a speed of 2.5*10^8 m/s, what is the angle between the proton's velocity and the direction of the field
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