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Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j
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A54 gram sample of a substance of an unkown material has a volume equal to 20 cm3. what is the ident...
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