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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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Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted
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2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
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When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?
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5.How does the area and intensity of the light in this experiment relate to the effects of gravity o...
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