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Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?
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Explain what happens at the saturation point when adding salt to water at room temperature.
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An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
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Physics, 22.06.2019 16:00
The solid that is formed and usually sinks to the bottom of a solution is the
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The following three forces act on a single small mass: 50.0 N 30° south of east, 100 N 45° south
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