Plzzz answer these 20 points to whoever does
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Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
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Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
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Physics, 22.06.2019 23:00
Which wave is the result of amplification and produces a louder sound
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Physics, 23.06.2019 01:00
Use vsepr theory to predict the molecular geometry of the molecule hcn.
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Mathematics, 26.07.2019 21:00
Geography, 26.07.2019 21:00
Mathematics, 26.07.2019 21:00
Social Studies, 26.07.2019 21:00
Mathematics, 26.07.2019 21:00
Mathematics, 26.07.2019 21:00
Mathematics, 26.07.2019 21:00
Mathematics, 26.07.2019 21:00
Physics, 26.07.2019 21:00
Computers and Technology, 26.07.2019 21:00