Physics

Physics, 19.07.2019 03:00, chloehall2269

Which of the following statements is not true? only a few energy conversions are 100 percent efficient. friction between moving parts can add energy to a system. batteries change electricity into chemical energy. photosynthesis converts light energy into chemical energy.

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Biology, 04.07.2019 00:30, eweqwee3147

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Agasoline engine transforms approximately 34 percent of the fuel’s chemical energy into mechanical energy. if energy is conserved, what happens to the other 66 percent? a) most is transformed into thermal energy. b) most is transformed into electrical energy. c) it is lost due to friction between moving parts. d) it is stored to run the car at a later time.

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