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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What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
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What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next
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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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