Consider a source of radiation with a luminosity of 8x104 lo located at a distance of 2 kpc. (a) assume that the light has a wavelength of λ 550 nm. how many photons per second does the keck telescope receive from this source (the diameter of keck is 10 m)? (b) if this source were to emit in the x-rays, with photons that have an energy~1 kev, how many photons per second would the chandra x-ray ( )beorea ory texx: lve the aroa of chandra about 0.h
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Physics, 23.06.2019 00:30
3. which is not a primary color of light? blue red green yellow
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Physics, 23.06.2019 00:30
Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.
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Consider a source of radiation with a luminosity of 8x104 lo located at a distance of 2 kpc. (a) ass...
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