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Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33
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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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In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic
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I need help! please no links! thanks! if you give the correct answer first you get brainliest!
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