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23. In terms of physics, the characteristic feature of the [#permalink]
08 Apr 2004, 03:34
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23. In terms of physics, the characteristic feature of the
roller coaster is that the cars' potential energy, gained through their being lifted by a chain drive through the EarthтАЩs gravity to the top of the first
drop, has been converted to kinetic energy by the
time the ride ends.
(A) cars' potential energy, gained through their
being lifted by a chain drive
(B) cars' potential energy, a gain achieved as they
are lifted by a chain drive
(C) potential energy from the cars' being lifted by a
(D) potential energy of the cars, gained as a chain
drive lifts them
(E) potential energy gained by the cars, being
achieved while a chain drive lifts them
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