1. A satellite is in uniform circular motion around the Earth, with an orbital period of 48 hours. It has on it a laser that transmits power to Earth with a wavelength of 200 nanometers. What shift wavelength will be seen from the Earth? You may neglect general relativistic effects, and you may neglect special relativistic effects in calculating the satellite's orbit.
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- 4. In an experiment on the photoelectric effect, a metal is illuminated by visible light of different wavelengths. A photoelectron has a maximum kinetic energy of 0.9 eV when red light of wavelength 640 nm is used. With blue light of wavelength 420 nm, the maximum kinetic energy of the photoelectron is 1.9 eV. Use this information to calculate an experimental value for the Planck constant h. [A proton has a de Broglie wavelength of 81.20 fm. What is its speed? m/sA radio wave with a frequency of 6.2 x 109HZ is detected to be travelling in space. The value of Planck's constant is 6.626 x 10-34 Js. How much energy does the wave carry? * 4.11 x 1024 J 4.11 x 10-24 J 4.11 x 1024 J•s 4.11 x 10-24 J•s How does a decrease in the frequency affect the electromagnetic wave? * Energy carried by the wave decreases. Wavelength decreases. neither A nor B both A and B
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