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  • 11-05-2017
  • Chemistry
contestada

A roller coaster reaches its maximum potential energy when it

A.is sitting at the top of a hill.
B.reaches the bottom of a hill.
C. rounds a curve.
D. starts up a hill.

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  • 11-05-2017
A 
dont ask how
anyways 
abcdefghijklmnopqrstuvwxyz now I know my ABC whatever the rest of the lyrics are
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