Physics, 25.01.2022 02:50, mscharris66
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: 1
Physics, 21.06.2019 19:00, simegustachocolate
Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.
Answers: 2
Physics, 22.06.2019 16:30, lunarwoo
A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
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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