Answers: 3
Physics, 21.06.2019 21:00, jjxt126
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.
Answers: 2
Physics, 22.06.2019 11:00, flores1717
Positrons are spontaneously emitted from the nuclei of
Answers: 1
A truck has a mass of 1,500 kg. If a net force of 3,000N is exerted on the
truck, what is its accel...
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