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ARC-Challenge / Mercury_7129640 / As a car burns fuel, a transformation from chemical to mechanical energy takes…

Problem

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question

As a car burns fuel, a transformation from chemical to mechanical energy takes place. What is the most likely result of the fuel burning?

choices

  • The matter that makes up the car increases.
  • The amount of useful energy decreases.
  • The efficiency of the car increases.
  • The amount of heat energy decreases.

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Source and history

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