Frequency of the vibration electron
What is the wavelength of red light is about 700 nanometers or 7x 10. the frequency of the red light reflects from metal surface and the frequency of the vibration electron that produces it are the same.
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A sample of radioactive isotopes contains two different nuclides, labeled A and B. Initially, the sample contains the same number of nuclei A as B (i.e. the sample composition is A/B = 1).
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The work done by friction on the rock when it moves from point A to point B at the bottom of the bowl is -0.22 J. What is the speed of the rock when it reached point B?
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