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Quando é verão no hemisfério norte, a Terra encontra-se mais perto do Sol?
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Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?
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Which model displays the change in a gas when the temperature of the gaseous system decreases?
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What instrument is used to measure liquid volume?
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Suppose two stars are located in region a of the h-r diagram shown in the figure below. star c appears much dimmer than star y as seen from earth. which star can be inferred to be nearer to earth and how do you know?
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Quando é verão no hemisfério norte, a Terra encontra-se mais perto do Sol?...
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