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Re: [Phys-l] Hubble Law



Take a look at:
<http://www.sci-ed-ga.org/modules/driving/parts/investigation6_.pdf>
Problem 12
Pages 24-25 in PDF file
Pages 107-108 in the module.

Larry Woolf
General Atomics
www.ga.com
www.sci-ed-ga.org

-----Original Message-----
From: frederth@saline.k12.mi.us
Sent: Thursday, January 18, 2007 7:09 AM

OK. I know that the Hubble Law states that recessional velocity of
distant galaxies is greater as distance increases. However, I am
forgetting why this should be intuitively correct? Is it because they
were accelerating longer at the start of the big bang??? Or is it
because of pressure from "dark energy" causing them to speed up for a
longer time?