Physics, 28.11.2019 22:31 alejandra216
11.(very challenging) during a 12 hour period, a tree lifts 50 kg of water a distance of 5 m from its roots to its leaves. finda) the amount of work done by the tree andb) the amount of power required for this process. c) if the tree’s power could be harnessed to run electric appliances, how many trees would it take to power a house that uses 30 kwh in that same 12 hour period
Answers: 1
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How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?
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Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?
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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 06:30
What are similarities and differences between refraction, reflection, diffraction and absorption?
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11.(very challenging) during a 12 hour period, a tree lifts 50 kg of water a distance of 5 m from it...
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