Physics, 14.07.2019 05:40 isabelvaldez123
Chen explained that heat engines illustrate only the second law of thermodynamics because they involve the flow of thermal energy from hot to cool areas. his friend mia disagreed and explained that these engines illustrate only the first law of thermodynamics because they are sometimes 100 percent efficient if they conserve enough energy. which statement best explains who is incorrect? a. chen is incorrect because heat engines illustrate only the first law of thermodynamics. b. chen is incorrect because in heat engines thermal energy flows from cool to warm areas. c. mia is incorrect because heat engines illustrate only the second law of thermodynamics. d. mia is incorrect because machines and engines can never be 100 percent efficient.
Answers: 2
Physics, 22.06.2019 00:00, cchsemily7210
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
Answers: 1
Physics, 23.06.2019 05:00, LilFlamingo247
What about a rubber band, can it change its shape? is it a solid?
Answers: 2
Chen explained that heat engines illustrate only the second law of thermodynamics because they invol...
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