We can learn a lot about the properties of a star by studying its spectrum. all of the followingstatements are true except one. which one? a. the peak of the star’s thermal emission tells us its temperature: hotter stars peak at shorter (blue) wavelengths. b. the total amount of light in the spectrum tells us the star’s radius. c. we can look at doppler shifts of spectral lines to determine the star’s speed toward or away from us. 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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Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
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We can learn a lot about the properties of a star by studying its spectrum. all of the followingstat...
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