Engineering, 09.07.2021 21:40 Iamjungshook
4. A rectangular waveguide is formed by copper walls (0.4 inch x 1.0 inch) and is filled with polyethylene. Find the 10 lowest cutoff frequencies in the waveguide
Answers: 1
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
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Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
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Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
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Engineering, 04.07.2019 19:10
What is the main objective of using reheat rankine cycle?
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4. A rectangular waveguide is formed by copper walls (0.4 inch x 1.0 inch) and is filled with polyet...
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