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A 60 kg runner in a sprint moves at 11 m/s. A 60 kg cheetah in a sprint moves at 33 m/s. By what factor does the kinetic energy of the cheetah exceed that of the human runner?
answered
May 21, 2020
Physics
high-school
2
votes
179k
views
Sarah recently learned about performing a cost–benefit analysis while studying environmental policies. Help her choose the right terms to describe this type of analysis
answered
Jan 13, 2020
Biology
middle-school
6
votes
233k
views
The 1764 Sugar Act, which actually lowered sugar tax rates but increased enforcement, and the 1764 Currency Act, which barred colonies from printing their own money, are both best described as which of
answered
Apr 23, 2019
History
middle-school
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vote
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