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Posts: 1445
5 years ago
The diagrams below each show the motion of a distant star relative to Earth (not to scale). The red arrows indicate the speed and direction of the star’s motion: Longer arrows mean faster speed. Rank the stars based on the Doppler shift that we would detect on Earth, from largest blueshift, through no shift, to largest redshift.

Each diagram below shows a pair of spectra with a set of spectral lines. The top spectrum always shows the lines as they appear in a spectrum created in a laboratory on Earth (“Lab”) and the bottom spectrum shows the same set of lines from a distant star. The left (blue/violet) end of each spectrum corresponds to shorter wavelengths and the right (red) end to longer wavelengths. Rank the five stars based on the Doppler shifts of their spectra, from largest blueshift, through no shift, to largest redshift.
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wrote...
4 years ago
thank you for sharing this
wrote...
4 years ago
thank you for sharing
wrote...
4 years ago
Thank you!
wrote...
4 years ago
thanks! that helps a lot
baka1234
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4 years ago
Thanks for the Help!
wrote...
4 years ago
this is REALLY helpful thank you so much!
wrote...
4 years ago
Thank you Smiling Face with Open Mouth
wrote...
4 years ago
thank you
wrote...
4 years ago
Thank you for sharing!
wrote...
4 years ago
ty
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4 years ago
thank you
wrote...
4 years ago
AWESOMENESSSS!!!!!!!!!! Smiling Face with Glasses
wrote...
4 years ago
thank you!
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