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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?
Before throwing a 1.49 kg discus, an athlete rotates it along a circular path of radius 1.18 m. The maximum speed of the discus is 25.7 m/s.
A 7.28-%u03A9 resistor is connected across a 9.00-V battery. The voltage between the terminals of the battery is observed to be only 7.27 V. obtain the internal resistance of the battery
A 4mC charge passes through the point (3m, 4m) at a speed of 100m/s. Find the components of the magnetic force felt by the charge
In an electricity experiment, a 0.800g plastic ball is suspended on a 51.0cm long string and given an electric charge. what is the tension of the string
A dumbbell is made of two spheres, which each have a mass M and a radius r - and a massless stick af length L. What is the torque acting on the dumbbell
When a ceiling fan rotating with an angular speed of 5.6 rad/s is turned off, What is the moment of inertia of the fan
In a certain time period a coil of wire is rotated from one orientation to another regarding a uniform 0.38-T magnetic field. The emf induced in the coil is 3.5 V. Other things being equal, what will the induced emf be if the field had a magnitude..
Two sinusoidal waves of the same period, with amplitudes of 5.5 and 7.5 mm, travel in the same direction along a stretched string; they produce a resultant wave with an amplitude of 12.760 mm. The phase constant of the 5.5 mm wave is 0. What is th..
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road, How far has the bicyclist traveled during the entire trip and What is the average speed of the bicyclist for the trip
7 an x-ray tube is operating with energy of 16 keV the produced x-rays photon strike a target and are compton-scattered at an angle of 45 degrees, what is the energy of the scattered x-ray photon in ev
An inverted cylindrical tube is immersed in water with 20.0 cm protruding from the surface, what will be the final pressure of the air
A small light cylinder and a large heavy cylinder are released at the same time and roll down a ramp without slipping. Which one reaches the bottom first
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