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Every year the earth travels about 10^9 km as it orbits the sun. what is the earth's average speed in km/h?
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Which statement correctly describes the relationship between frequency and wavelength?
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What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
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What practical value did astronomy offer to ancient civilizations?
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Every year the earth travels about 10^9 km as it orbits the sun. what is the earth's average speed i...
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