Physics, 27.11.2019 22:31 drecooks713
Aglass plate has a mass of 0.50 kg and a specific heat capacity of 840 j/(kg·c°). the wavelength of infrared light is 18 × 10-5 m, while the wavelength of blue light is 4.6 × 10-7 m. find the number of infrared photons and the number of blue photons needed to raise the temperature of the glass plate by 2.0 °c, assuming that all the photons are absorbed by the glass.
Answers: 1
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
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Physics, 22.06.2019 23:00
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Aglass plate has a mass of 0.50 kg and a specific heat capacity of 840 j/(kg·c°). the wavelength of...
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