Physics, 06.12.2019 14:31, 5nathanomadrid5

Circle the letter of the sentence that explains why no machine is 100% efficient. a. electrical energy is transformed to mechanical energy by fuel. b. mechanical energy is transformed to thermal energy by friction. c. thermal energy is transformed to mechanical energy by friction. d. mechanical energy is transformed to electrical energy by a spark.

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Circle the letter of the sentence that explains why no machine is 100% efficient. a. electrical ener...