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X rays diffract from a crystal in which the spacing between atomic planes is 0.200nm . The second-order diffraction occurs at 42.0^\circ. What is the angle of the first-order diffraction?
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530 at a wavelength of 410 nm (violet), what is the angle of refraction for each wavelength
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 302 K and the refrigerator is kept at a temperature of 276 K. find the coefficient of performance of this refrigerator
a typical hard drive in a computer spins at 5400rpm. what is the period in seconds
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.27 × 10-6 T. What is the intensity S of the wave
an electric toaster operating on 104.6 volts draw a current of 9.1 amps. what is the resistance of the toaster
The temperature inside a house is 25°C while the temperature outside is 10°C. Approximately how much energy is radiated per second
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. How long after being released does the stone strike the beach below the cliff
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 9 10-10 m along the y axis
When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp.
An ocean liner leaves New York City and travels 16.10 ° north of east for 234 km. How far east and how far north has it gone? In other words, what are the magnitudes of components of the ship's displacement vector in directions (a) due east and (b..
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", What volume of water, in acre-feet, fell on the town
Upton Chuck is riding the Nitro at Six Flags Great Adventure. If Upton free falls for 2.55 seconds, what would be his final velocity and how far would he fall.
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