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Physics, 21.06.2019 21:00
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
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Physics, 22.06.2019 16:00
The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )
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Physics, 22.06.2019 16:30
The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm
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Physics, 22.06.2019 17:00
What equation is used to calculate the weight of an object on a plant ?
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In an emergency, a driver brings a car to a full stop in 5.00 seconds. The car is traveling along a...
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