Longest wavelength that a photon may have
Question: The work function of sodium is 2.23 ev. What is the longest wavelength that a photon may have , if it is to cause an electron to be ejected when the photon strikes the surface of a piece of sodium?
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On a hot summer day, the temperature of air in Arizona reaches 113°F. What is the speed of sound in air at this temperature? (Enter your answer to four significant figures. The speed of sound at 0°C is 331 m/s. Use the conversion 0°C =
Acme Company is considering investing in a new machine that costs $126,594 and that has a useful life of 12 years with no salvage value. The machine will generate $19,500 annually in net cash inflows.
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The work function of sodium is 2.23 ev. What is the longest wavelength that a photon may have , if it is to cause an electron to be ejected when the photon strikes the surface of a piece of sodium?
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An electron traveling at 713 m/s enters a 0.9 T magnetic field. The angle between the velocity and the field is 90o. Find the radius of the resulting circular path.
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