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Physics, 27.09.2021 20:20 khadythiam6957
Giải giúp mình ạ
cảm ơn nhiều
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Physics, 21.06.2019 17:10, 87haymaker
The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?
Answers: 1
Physics, 22.06.2019 12:30, lanaasad7733
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 17:30, Coolcatfurzy
Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity
Answers: 3
Physics, 19.05.2020 04:02
Mathematics, 19.05.2020 04:02
Mathematics, 19.05.2020 04:02
Mathematics, 19.05.2020 04:02
Mathematics, 19.05.2020 04:02
Mathematics, 19.05.2020 04:02