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Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?
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A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp
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Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?
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As an interstellar cloud of hydrogen gas shrinks in size, its rate of rotation...
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