Space Flashcards by Matteo Maiello | Brainscape

Q

What is the distance of a light year?

A

9.46x10^15 m

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Q

How old is the earth?

A

4.54 billion years old

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Q

How old is the universe?

A

13.8 billion years old

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Q

What can you use to see a line spectrum?

A

A spectroscope

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