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For two objects separated by a distance d, if the mass of one of the objects is doubled, what will happen to the gravitational attraction between them?
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A truck travels 420 m. Each tire on the truck has a diameter of 42 cm. If one revolution of a tire is equal to 2? Times the radius of the tire (in meters), which of the following equations shows how many revolutions each tire makes as the distance is traveled?
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Why is mercury used in thermometers rather than water?
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