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What is Hubble's Law and why is it important?

Answer 1

I'm sorry your question remained unanswered for so long. Hubble's law says that galaxies move away from each other at a speed proportional to their distance. It is the basis for confirming that the universe is expanding.

#v = H D# where v is the velocity, d is the distance and H is Hubble's constant, #H = 160 \frac{\frac{km}{s}}{10^6 ly}#

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Answer 2

Hunter Arthur

Hubble's Law is significant because it supports the Big Bang theory, provides evidence for the universe's expansion, and establishes a direct relationship between the velocity at which a distant galaxy is receding from us and its distance from Earth.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.