Explain why Hubble’s parameter, with its value today called Hubble’s constant, is not actually a constant.
Q: Estimate the age of the Universe, in years, using an outdated value of 99.90 km/s/Mpc for Hubble’s…
A: Outdated value is, 99.9 km/s/Mpc So, the age of universe is calculated as, Age= 1Outdated value
Q: Describe the expanding universe theory (Big Bang Theory) based on observed astronomical evidence…
A: According to the Big Bang Theory, the universe is expanding from the state having high temperature…
Q: What are the three important pieces of evidence that led scientists to accept the Big Bang as the…
A: The Big Bang model is one of the many theories that were developed to explain the birth of the…
Q: What is your reflection about the big bang theory?
A: Big bang theory assumes that universe was a dense point initially. And then it started to expand…
Q: Why is dark matter a problem?
A: Without dark matter stars would escape their galaxies and galaxy clusters would come unbound.…
Q: List other discoveries that support the big bang theory and are consistent with Hubble's discovery.
A:
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter ?
Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: The age of the universe is given by Where Ho = Hubble constant
Q: What is a mass difference, and how does it arise?
A: To explain: Mass difference.
Q: Briefly explain the degenerate matter.
A: Given:Briefly explain the degenerate matter.Now,Degenerate matter refers to states of matter…
Q: Explain why Olbers’s paradox is not a paradox.
A: In the early history of astronomy, it was believed that the universe is static, infinite, uniform,…
Q: According to the cosmological principle, our place in the universe does not appear to be…
A: According to the cosmological principle, our place in the universe does not appear to be…
Q: Calculate the age of the universe for the following Hubble's constant, (b) 65 km/s/Mpc
A: As per Hubble's law, the universe is expanding. If we assume that the expansion's apparent velocity…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter.
Q: Question A7 Consider the following line element, ds² = - dt² + a² (t) (da² + dy²) + b² (t) dz²,…
A: The objective of the question is to determine whether the given line element obeys the Cosmological…
Q: Perhaps the most fundamental problem in all of astronomy is the determination of distance to the…
A: "The Hubble Law relates the recessional speed of distant objects (measured with the Doppler Effect)…
Q: If a galaxy is 9.1 Mpc away from Earth and recedes at 511 km/s, what is H0 (in km/s/Mpc)? 2. What…
A: Note: As per the policy, only the first question will be solved. If you want the solution for other…
Q: What exactly is dark matter?
A: Particles that do not absorb, reflect, or emit light, hence cannot be detected by electromagnetic…
Q: Hubble law describes how the speed of recession of distant galaxies varies with the distance from…
A: Introduction: Hubble law: It is used for describing the age of the universe since the big bang. It…
Q: What value for the Hubble constant would another galaxy in the universe observe?
A: ANS: c) a unique Hubble constant for that specific location in the universe.
Q: How can forces be unified?
A: According to the Big Bang Theory, a single force existed at the beginning of time. As the Universe…
Q: Why can't we see past the cosmological horizon? O The universe extends only to this horizon. O…
A: We can't see past the cosmological horizon because the only things that we saw on the night sky is…
Q: Calculate the age of the universe for the following Hubble's constant, (a) 50 km/s/MDC
A: As per Hubble's law, the universe is expanding. The recessional velocity of galaxies is directly…
Q: How does the Hubble constant relate to the age of the universe?
A: Hubble constant is defined as the proportionality constant between velocity of galaxies far from us…
Q: Under what circumstances would the slope of the best-fitted line in Figure decrease:
A: Required The correct choices.
Q: The Hubble constant is found from the... Group of answer choices slope of the line fit to…
A: Given data- Hubble's law- Hubble's law relates the recession velocity of galaxy and the distance to…
Q: If you find that the Hubble constant is double what we currently believe, how does this affect the…
A: Q) If you find that the Hubble constant is double what we currently believe, how does this affect…
Q: Explain the theories Beyond the Standard Model.
A: Concept used: Standard model is the model which explains the governing forces of nature. Physics…
Q: Answer the following. Albert Einstein’s significant contribution in understanding the universe was…
A: solution as
Q: State And Explain Hubbles Law?
A: Hubble’s law states that the distance to a galaxy is proportional to its recession velocity.…
Q: Summarize The Big Bang Theory and its evidence
A: Humans have been always keen on knowing how the universe came into existence. For this, they…
Q: The matter density in the Universe today is Pm = kg m-3. What would 2.7 x 10-27 be the value of the…
A:
Q: An object is measured to be at a distance of 20 Megaparsecs away from Earth. Using a currently…
A: According to the Hubble's law, galaxies are moving away from Earth at speeds proportional to their…
Q: What is Feynman diagram and why is it used?
A: The Feynman diagram is basically a pictorial presentation of some mathematical expressions or…
Q: What is dark matter? (200 words)
A: Answer:Dark matter is a form of matter accounting 85% of the matter in the universe and about a…
Explain why Hubble’s parameter, with its value today called Hubble’s constant, is not actually a constant.
ANSWER:
Hubble's law states that the recessional velocity of the distant galaxy is directly proportional to their distance of the galaxy.
Where H0 is the Hubble's constant and its present value is 70 km/s/Mpc.
Step by step
Solved in 2 steps with 1 images
