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Calculate the average kinetic energy and the average potential energy for the 2nd excited state of a harmonic oscilator. use expectation values to calculate a quantum mechanical average, show integrations.
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
When the door of the Chapel of the Mausoleum in Hamilton, Scotland, is slammed shut, If that echo were due to a single reflection off a wall opposite the door, how far from the door would that wall be
The electron mass is 9×10?31 kg. What is the magnitude of the momentum of the electron
A uniform 1.3 kg rod that is 0.8 m long is suspended at rest from ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling.
Suppose two highly precise, identical clocks are synchornized and one clock is placed at the North Pole and one clock is placed at the equator. After 100 years, how much time will the clocks differ in time
A subway train starts from rest at a station and accelerates at a rate of 1.50m/s2 for 14.2s. find total distance covered
A police van moving on a highway with a speed of 30 kmph fires a bullet of a theif's car speeding away in the same direction with a speed of 192 kmph.
a cylindrical resistor of radius 1.0 mm and length of 1.0 cm has resistance of 10 ohms. calculate the uniform current density in the resistor when the power of the resistor is 1 watt
An opera singer in a convertible sings a note at 419 Hz as cruising down the highway at 81.0 km/hr. What is the frequency (in Hz) heard by a person standing beside road in front of the car? suppose that the speed of sound is 343 m/s.
What must be the mass m2 of the hanging block if it is to descend 11.0m in the first 3.00s after the system is released from rest
An electron with a speed of 3.55·E5 m/s enters a uniform mangetic field of magnitude 0.0397 T at an angle of 34.5° to the magnetic field lines, Determine the radius of the helical path
A 200 kg object and a 500 kg object are separated by 1.2 m. A 150 kg object is placed half way between the two objects, What is the gravitational potential energy of the three masses
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