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if light from one star is 251 times brighter (has 251 times more flux) than light from another star, what is their difference in magnitude?
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The yellow river is also known as the huang he river? true or false
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Geography, 22.06.2019 14:40
Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite
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Geography, 24.06.2019 02:00
Select the best hypothesis explaining why countries may have preferred communism. communism promised jobs after the insecurities of war. communists forced the people to do what they said. communism was fueled by a dislike for democracy. communism provided economic freedom for businesses and workers.
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if light from one star is 251 times brighter (has 251 times more flux) than light from another star,...
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