According to Hubble’s law, the away a galaxy is, the it is moving away from us.?

2009-07-10 5:18 am

According to Hubble’s law, the __________ away a galaxy is, the __________ it is moving away from us.

A. Farther; faster
B. Farther; slower
C. Closer; faster
D. This is a trick question: all galaxies move away from us at the same speed.

Is it A?

回答 (4)

wu_tangclan_gang

2009-07-10 10:04 am

✔ 最佳答案

Yes, it's A. This is from Hubble's Law v = H_o* D
where H_o is hubble's constant (this varies depending on different astronomer's observation) while D is the distance.

參考: http://en.wikipedia.org/wiki/Hubble%27s_law

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[匿名]

2009-07-10 12:24 pm

參考: astronomy classes

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