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Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?
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Which atomic model was proposed as a result of j. j. thomson’s work?
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1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
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What contributions did Johannesburg Kepler make...
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