MrTeriffic
11.02.2020 •
Physics
What volume of water at 0 ∘C can a freezer make into ice cubes in 1.5 h , if the coefficient of performance of the cooling unit is 9.0 and the power input is 1.2 kilowatt? Express your answer using two significant figures.
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Ответ:
Explanation:
= Density of water = 1000 kg/m³
Mass is given by
Energy used is
The volume of water is
Ответ:
The relationship between current, voltage and resistance is expressed by Ohm's Law.
I= V/r
Explanation: