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What should the power status of a circuit be when measuring resistance with an ohmmeter?
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Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law
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2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
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Physics, 22.06.2019 11:00
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg β’ what must the total momentum of the system be after the train cars collide? kg β’
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The wavelength of red helium-neon laser light in air is 632.8 nm.(a) what is its frequency? (b) what...
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