Ratio of the photon wavelength to the de broglie wavelength
The kinetic energy of a particle is equal to the energy of a photon. The particle moves at 4.2% of the speed of light. Find the ratio of the photon wavelength to the de Broglie wavelength of the particle. Take the speed to be non-relativistic.
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In San Francisco, 30% of workers take public transportation daily (USA Today, December 21,2005).
The left steel section has a 120 mm diameter and is 500 mm long while the right brass section has a 80 mm diameter and is 400 mm long. Determine the torque in each section.
The overall rise in the pipe from tank to trough is 3 feet. Calculate the required air pressure above the water in the tank to produce 7.5 gal/min of flow (use f = .025).
A refrigerator operates on the ideal vapor compression refrigeration cycle with R-134a as the working fluid between the pressure limits of 120 kPa and 800 kPa.
A heat pump operates on the ideal vapor compression refrigeration cycle with R-134a as the working fluid between the pressure limits of 0.32 MPa and 1.4 MPa.
The pipe rise from tank to trough is 3 feet. Calculate the required air pressure above the water in the tank to produce 75 gal/min of flow.
A proton is confined to a nucleus that has a diameter of 4.8 × 10-15 m. If this distance is considered to be the uncertainty in the position of the proton, what is the minimum uncertainty in its momentum?
A nuclear power reactor generates 2.5 × 109 W of power. In one year (365.25 days), what is the change in the mass of the nuclear fuel due to the energy being taken from the reactor?
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