Physics, 24.01.2022 23:40 2021danaejalang
An electric kettle has a power rating of 2.4kW. How long does it take the kettle to heat up 4.5kg of tap water from 28°C to 100°C ? (c of water = 4200Jkg1°C-) What assumption must you make to arrive the answer ? pls helppp
Answers: 2
Physics, 22.06.2019 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
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Physics, 22.06.2019 15:00
Give an example in which the electrical energy changes to light energy
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Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.
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An electric kettle has a power rating of 2.4kW. How long does it take the kettle to heat up 4.5kg of...
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