Physics, 25.11.2020 14:50 giselabarajas24
Calculate the power of a crane if it lifts a load of 2400N through a height of 10m in 15 seconds. Also express the power in horse power.
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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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The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot
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Calculate the power of a crane if it lifts a load of 2400N through a height of 10m in 15 seconds. Al...
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