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Six electrons are confined to a 2-dimensional square infinite potential well with sides of length L. What is the ground state energy of the system? The answers are expressed in units of h2/8meL2.
Years ago, a block of ice with a mass of about 20 kg was used daily in a home icebox. how much heat did a block of ice that size absorb
The maximum induced emf in a generator rotating at 249 rpm is 44 V. How fast must the rotor of the generator rotate
A 0.450-kg block of wood hangs from the ceiling by a string, and a 7.30×10?2-kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
A satellite is in a circular orbit 7900 km above the Earth's surface; i.e., it moves on a circular path under the influence of nothing but the Earth's gravity. Find the time it take to complete one orbit around the earth
Humid air breaks down in a sufficiently strong electric field, What is the magnitude of the electrostatic force for an electron and for an ion with a single electron missing
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 15 cm and outer radius 31 cm has magnitude 465 N/C and is directed outward.
A copper bar 2.5 m long has a circular cross section of radius 2 cm. One end is kept at 80 oC and the other end is kept at 0 oC. what is the thermal current in the copper bar
When a 0.121 kg mass is suspended at rest from a certain spring, the spring stretches 4.10 cm. Find the instantaneous acceleration of the mass
Two masses are placed on an airtrack and given initial velocities towards each other. Calculate the impulse acting on mass one during the collision
Monochromatic light of wavelength 543nm falls on a slit. If the angle between the first two bright fringes on either side of the central maximum is 31?
A simple harmonic oscillator is undergoing oscillations with an amplitude A. How far is it from its equilibrium position when the kinetic and potential energies are equal?
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