Calculate the atomic radius of copper
The coinage metals-copper, silver, and gold-crystallize in a face center cubic structure. Use the density of copper of 8.95 g/cm^3 to calculate the atomic radius of copper.
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It enters this nozzle at 100 psia, 200oF with a velocity of 100 ft/s and exits at 25 psia. Calculate the exit temperature and velocity of the air.
What is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect? What is the wavelength of this light?
Two long parallel wires whose centers are 21.0 cm apart are part of the same circuit. Each wire carries equal currents in opposite directions.
The time X it takes to reboot a certain system has Gamma distribution with E(X) = 20 min and Std(X) = 10 min. Compute parameters of this distribution.
Four balls, each of mass m, are connected by four identical relaxed springs with spring constant k. The balls are simulataneously given equal initial speeds v directed away from the center of symmetry of the system.
A puck of mass m = 1.00 kg slides in a circle of radius r = 23.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 3.80 kg by a cord through a hole in the table. What speed (in m/s) keeps the cylinder at rest?
An office copier uses a lens to place an image of a document onto a rotating drum. The copy is made from this image. (a) What kind of lens is used? Should it be 1 - converging, or 2 - diverging? (Give the number of the correct answer.)
For a steel furnace, silica refractories have corrosion rates of 2E-7 m/s at 1,345OC and 9E-7 m/s at 1,510OC. Calculate the activation energy for the corrosion of these silica refractories.
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