Physics, 19.02.2020 00:22, justachelseafan
Suppose that you decide to look at a known binary star system. The system is too far away to resolve the individual stars, so it appears to be just one point of light. By looking at the spectrum of the system, though, you should be able to use the Doppler shift to determine some parameters of the two-star system.
The first thing that one notices is that there appear to be two hydrogen spectra shifted relative to each other owing to the motion of the stars relative to each other. Furthermore, one notices that the position of these lines will shift over time as the stars orbit around each other.
Consider a binary star system that has bright lines at 656.72 and 656.86 nm. Over the course of six months the 656.72-nm line moves to longer wavelength and the 656.86-nm line moves to shorter wavelength, until finally the two have swapped (i. e., the spectrum of the star system again shows bright lines at 656.72 and 656.86 nm). Assume that the stars are of roughly equal mass and moving in a circular orbit with axis perpendicular to the line connecting the star system to the earth.
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Select the word from the list that best fits the definition classification of most stars on the h-r diagram
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A3.9 g aluminum foil ball with a charge of +4.1ร10โ9 c is suspended on a string in a uniform horizontal eโ field. the string deviates to the right and makes an angle of 30โ with the vertical. part a part complete what information about the eโ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of eโ only the direction of eโ both the magnitude and the direction of eโ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
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Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?
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Suppose that you decide to look at a known binary star system. The system is too far away to resolve...
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