We can learn a lot about the properties of a star by studying its spectrum. all of the following statements are true except one. which one? a. we can look at doppler shifts of spectral lines to determine the star's speed toward or away from us.
b. the peak of the star's thermal emission tells us its temperature: hotter stars peak at shorter (bluer) wavelengths.
c. the total amount of light in the spectrum tells us the star's radius.
d. we can identify chemical elements present in the star by recognizing patterns of spectral lines that correspond to particular chemicals.
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Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)
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We can learn a lot about the properties of a star by studying its spectrum. all of the following sta...
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