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clouds have many effects, such as
warming earth's...
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Physics, 21.06.2019 20:30
Which statement best describes how private industry decides where to spend the money on research and development
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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
At what time will the interfering waves have an amplitudeof zero?
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