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What happens to light waves from a star as the star moves away from earth?
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What is the increase in density of a medium due to wave travel?
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In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?
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Physics, 22.06.2019 17:30
Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?
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. What is a normal force? It acts against an object slowing it down. It acts perpendicular to an obj...
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