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Mathematics 19 Online
OpenStudy (anonymous):

The farther away a galaxy, the faster it is moving away from us. True False

OpenStudy (anonymous):

true

OpenStudy (anonymous):

Now u have to explain why...:-)

OpenStudy (anonymous):

Hubble was able to show that there is a linear relationship between the distance to a remote galaxy and the redshift of its spectral lines (the relationship is called Hubble's Law). Redshift is a direct measure of the velocity of the galaxy away from us...

OpenStudy (anonymous):

That is experimental evidence, still doesn't explain why, though...

OpenStudy (anonymous):

why - as in why this and not that - is not the realm of physics. Physics - and all sciences - says what is.

OpenStudy (anonymous):

Ah, neither a theoretical physicist, philosopher or lender be....:-) What's the latest, inflation, dark energy, I can't keep up.

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