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A.) An electron with kinetic energy of 19.6 eV bombards atom X. After the collision, this electron has 17.2 eV. What is one wavelength of light that would be emitted by an excited gaseous X atom?
B.) A photoelectric surface is illuminated with monochromatic light with a wavelength of 6.25 x 102 nm. What is the maximum speed of an electron ejected from this surface if the surface has a work function of 1.40 eV?
An air hockey puck is attached to a string with a length of .45 m and is set in a circular motion with a period of 2.0 s. What is the tangential speed of the puck
The mass of each can be taken to be 37,000 . If the train is accelerating at on a level track, elucidate the tension in the coupling between the second and third cars? The car nearest the locomotive is counted as the first.
The equation in part (b) can not be solved analytically to give the allowed energy levels but simple solutions exist in certain special cases. Determine the conditions on Vo and a so that a bound state exists with E=0.
The rails are laid on a winter day when their temperature is 1.8°C. (a) How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 32.2°C
a small diameter 61-cm long solenoid has 280 turns and is connected in series with a resistor of 184 ohm. calculate
How much heat flows from 1.0 kg of water at 40.0 degrees C when it is placed in contact with 1.0 kg of 16.0 degrees C water in reaching equilibrium, what is the change in entropy due to this heat transfer
If her downward motion is stopped 1.80 s after her feet first touch the water, what average upward force did the water exert on her?
An object of mass m = 3.1 g and charge q = +48 μc is attached to a string and placed in a uniform electric field that is inclined at an angle of 30 degrees with the horizontal. The object is in static equilibrium when the string is horizontal.
A rocket is lauchned upward with a velocity of 3m/s. How long does it take to reach the top of its trajectory
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. Find the force acting on the board by the retaining wall
a spring with a spring constant of 500 nm is used to propel a 0.41-kg mass up an inclined plane. the spring is
A 0.596 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
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