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An electron that has energy of approximately 8.0e+01 eV moves among rigid walls 1.3 nm apart.
a) Discover the precise energy of the electron.
b) Discover the quantum number n for the energy state that the electron occupies.
A 83 kg solid sphere with a 19 cm radius is suspended by a vertical wire. What is the period of the oscillations that result when the sphere is then released
A supertanker (mass = 1.61E+8 kg) is moving with a constant velocity. Determine the magnitude of the resistive force exerted on the tanker by the water
On a nice winter day at the South Pole, the temperature rises to ?63°F. What is the approximate temperature in degrees Celsius
Dust particles are pulverized rock, which has density 2500 kg/m3. They are approximately spheres 20 ?m in diameter. what is the root-mean-square speed (thermal speed) of a dust particle at 60°C
a drawbridge with a weight of 5000 n is supported by a hinge and rope and is in static equilibrium. the length of the drawbridge, l, is 5 meters, what is the tension force the rope provides
A 42.5 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 19.5 mm diameter, and 13.0 cm length. Compute the inductance of the solenoid
A transformer has 590 primary and 170 secondary turns. An alternating potential of 90 V is applied to the primary
a hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake.
A cubical piece of heat-shield-tile from the space shuttle measures 0.14 m on a side and has a thermal conductivity of 0.065 J/(s·m·C°). The outer surface of the tile is heated to a temperature of 1040°C, while the inner surface is maintained at a..
A 68.0-kg person throws a 0.0500-kg snowball forward with a ground speed of 27.0 m/s. What are the velocities of the two people after the snowball is exchanged
Angry Bird is launched horizontally with a slingshot with a speed of 6.07 m/s. how far away will the target need to be
An astronaut on a space walk discovers that his jet pack no longer works, leaving him stranded 40 meter from the spaceship. describe how the astronaut can still use it to return to the ship
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