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.
Answers: 3
Physics, 22.06.2019 06:30
The energy of a photon was found to be 3.38 ร 10โ19 j. planckโs constant is 6.63 ร 10โ34 j โข s. which color of light corresponds to this photon?
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Ways that industry and agriculture use physical properties to separate substances
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Physics, 22.06.2019 14:00
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
Answers: 3
Circle the letter of the sentence that explains why no machine is 100% efficient. a. electrical ener...
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