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Consider a proton confined to a region of typical nuclear dimensions, about 5 fm.
(a) Use the uncertainty principle to find its minimum possible kinetic energy in MeV, suppose that its moves in only one dimension.
(b) Determine how would your result be modified if the proton were confined in a three dimensional cube of side 5 fm?
You're an optometrist, mounting a projector at the back of your 3.8m -long exam room, 2.6m above the floor. At what height should you center the pattern on the wall
In which of the following situations could total internal reflection occur? Choose all that apply. Going from crystalline quartz to fused quartz. Going from oxygen to carbon disulfide.
A plane mirror is lying flat in the x-y plane with its reflecting surface facing up. A point source of light is located at (x=0.0 m, y=2.0 m, z=3.0 m). What is the distance from the object to the image
A laser produces a cylindrical beam of light of wavelength 400nm. The average energy in a 2m length of the beam is 5*10^-8J. What is the average power output of the laser
A current of 10.0 mA is maintained in a single circular loop with a circumferenceof 1.60 m. A magnetic fieldof0.550 T is directed parallel tothe plane of the loop. What is the magnitude of the torque exertedby the magnetic field on the loop?
The supersonic aircraft Concorde has a length of 63 when sitting on the ground on a typical day when the temperature is 13.00. The Concorde is primarily made of aluminium. In flight at twice speed of sound, friction with the air warms the Concorde..
A proton beam in an accelerator carries a current of 115µA. If the beam is incident on a target, how many protons strike the target in a period of 26.0s?
A power factor is 0.72 lagging and the power dissipated is 375W. 120V and a resistance of 10 ohms, showing all working out.
High-speed stroboscopic photographs show that the head of a 250. g golf club travels at 60.0 m/s just before it strikes a 47.0 g golf ball at rest on a tee. What is the velocity of the golf ball just after the impact by the club
The low temperature in a freezer is -20 C, and the discharge temperature is 35 C. What is the maximum theoretical coefficient of performance
The speed of light in ice is 2.29x10 8 m/s. What is the index of refraction of ice
An electron is released from rest in an electric field of 2.13 x 10-10 N/C pointing to the right. After the electron has traveled a distance of 1.2 micrometers, what is its velocity?
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