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The top documents tagged [object earth]
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Earth, Moon, and Sun Chapter 19. Earth in Space 19-1 Astronomy study of objects beyond the Earth’s atmosphere. One of the oldest sciences Ancient people
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A weightlifter lifts a barbell 0.65 m with a constant force of 435 N. If it takes 280 W to move the barbell, how many seconds did it take?
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The Ray Model of Light. Light travels in straight lines: Laser Part 1 – Properties of Light
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