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Consider a particle in a cubic box (side =L). By analogy to the particle in the 2D box, write down the expressions for the Psi(x, y, z) and E. What is the degeneracy of the level that has energy three times that of the lowest level?
An electron is moving through a magnetic field whose magnitude is 8.76 x 10-4 T. The electron experiences only a magnetic force and has an acceleration of magnitude 3.32 x 1014 m/s2.
In a certain compound microscope, the object is 9.0 mm from the objective. What overall magnification is produced
A uniform ladder 7.34m long weighing 410N rests with one end on the ground and the other end against a perfectly smooth vertical wall. What force does the wall exert on the ladder
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons.
A particle moves along the x axis. Its position is given by the equation 2.00 + 3.00t - 4.00t^2 with x in meters and t in seconds. Find out (1) its position at the instant it changes direction and (2) its velocity when it returns to the position i..
A severe thunderstorm dumped 2.4 in of rain in 30 min on a town of area 42 km2. What mass of water (in kg) fell on the town
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of itsengines is 3.90 x 105 N. In being launched from rest itmoves through a distance of 72.8 m and has a kinetic energy of ..
question the refractive indices of materials a and b have a ratio of nanb 1.79. the speed of light in material a is
A pendulum consists of a 3.1 kg stone swinging on a 4.2 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point. what is the total mechanical energy of the system
a square plate of edge length 12.0 cm and negligible thickness has a total charge of 5.80 x 10-6 c. estimate the
A 7.0cm--diameter disk emits light uniformly from its surface. 20cm from this disk, along its axis, is an 9.0cm--diameter opaque black disk; the faces of the two disks are parallel. find the diameter of the completely dark part of this shadow
A long uniform rod of length L and mass M is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest in a vertical position. Determine the components of the reaction force at the pivot
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