What did Edwin Hubble discover about galaxies that allowed him to determine the expansion rate of the universe?

1 answer:

6 0

<span> The farther away a galaxy is, the more its light
is shifted toward the red end of the spectrum. (C)</span>

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Marina CMI [18]

I think it’s 15cm
Might be 7cm

3 0

3 years ago

Effectus [21]

A. logic, would be your answer i believe!

4 0

2 years ago

almond37 [142]

Answer:

Explanation: simple kinematics

we suppose that initially vo= 0 so if the skier moves 4s :

vf = vo +at = 0 + 3*4 = 12 m/s

best wishes from colombia

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3 years ago

Xelga [282]

Answer:1200kgm/s

Explanation:

Mass=60kg velocity=20m/s

Momentum=mass x velocity

Momentum=60 x 20

Momentum=1200kgm/s

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3 years ago

pashok25 [27]

Answer: Copper and oxygen

Explanation:

Copper and oxygen shares the ionic bond. As we know that ionic bond is the most strongest bond. Here is the order:

Hydrogen bond< Metallic bond< Ionic bond.

That means order in terms of increasing bond strength is :

Hydrogen and hydrogen< Copper and copper< Copper and oxygen.

5 0

2 years ago