joegho3 joegho3
  • 02-10-2021
  • Physics
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NEED HELP FAST PLEASE

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rb071799
rb071799 rb071799
  • 02-10-2021

Answer:

if a star is moving towards earth it is blue shifting

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elmerarriagaaa elmerarriagaaa
  • 02-10-2021
I’m pretty sure it is expanding
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