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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 23:00
The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?
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Physics, 23.06.2019 01:00
What electron configurations do atoms usually achieve by sharing electrons to form covalent bonds?
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Advanced Placement (AP), 09.08.2019 04:20
Mathematics, 09.08.2019 04:20
Mathematics, 09.08.2019 04:20
Mathematics, 09.08.2019 04:20