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Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon
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Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
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Physics, 22.06.2019 18:00
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
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A mother and daughter are on a seesaw in the park. How far from the center must the 111 lb mother si...
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