2) What will be the Hubble constant of a universe with an age of 80 billion years?
Q: (b) Draw the shape of the Milky Way for a spaceship with a velocity of 20%, 50%, and 90% of the…
A:
Q: = 2. Using a Hubble constant of Ho 70 km/s/Mpc, find the distance to the galaxy cluster that moves…
A: Distance to the galaxy cluster is 92.8571 Mpc or 3.029×108light years. Explanation:Hubble's law…
Q: Consider a universe in which the Hubble constant has been measured to have the value H0 = 50…
A: Hubble's law gives the idea that the universe is continuously expanding, and that galaxies are…
Q: Calculate the critical density of our universe.
A: Our universe is expanding and critical density is defined as the average density of matter that is…
Q: why do you have to know the distance to a galaxy to find its mass?
A: The orbital motion of stars explains the masses of galaxies. The stars in a heavier galaxy exhibit…
Q: Calculate the critical density of a universe with Hubble constant of 89 km-s¹.Mpc¯¹.
A: It is observed that galaxies are moving away from each other and the farther they are faster they…
Q: If we find a galaxy that is moving away at 72,000 km/s, what does Hubble’s law tells us about the…
A:
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: b) The cosmic microwave background dates to a time when the universe was -380,000 years old, or to a…
A: Given: 380000 years ago Tr=3000 Kz=1100
Q: Estimate the critical density of the universe if the Hubble's constant was 100 km/s/Mpc.
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Q: Consider a universe in which the Hubble constant has been measured to have the value Ho = 50…
A: Given: The measured value of the Hubble constant is H0 = 50 km / s / Mpc
Q: Calculate the Hubble time for a universe with a Hubble constant of sixty kilometers per second per…
A: Given:Hubble's constant, Ho = 60km/(s Mpc)Asked:Hubble's Time, tH = ?
Q: Estimate the temperature of the universe when it was approximately 1 minutes old
A: Our universe is thought to be formed from a singularity of infinite density and temperature. It…
Q: Calculate the age of the universe for the following Hubble's constant, 200 1... - N (d) 20 km/s/Mpc
A: As per Hubble's law, the universe is expanding. If we assume that the expansion's apparent velocity…
Q: Estimate the critical density of the universe if the Hubble's constant was 50 km/s/Mpc.
A: The minimum density that is required to stop the expansion of the universe is defined as the…
Q: According to the version of the Big Bang Theory without a Cosmological Constant (and without Dark…
A: Hubble's Law states that as the universe is expanding in all directions, the receding velocity of an…
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: Calculate the age of the universe for the following Hubble's constant, m (c) 80 km/s/Mpc Of
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Q: 6) The redshift of a galaxy is observed to be 1.5. Calculate the recessional velocity of the galaxy.
A: Redshift takes place when the source is moving away from the observer. This reduces the frequency…
Q: What evidence can you cite that the expansion of the universe is accelerating?
A: It is observed that galaxies are moving away from Earth at speeds proportional to their distance.…
Q: 4) Calculate the redshift of a galaxy with a recessional velocity of 0.68c. (
A: When a celestial object is moving away from the observer the light observed from the object will…
Q: In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble…
A: Given: one image of hubble ultra deep field is roughly 10 square arcminutes. Number of galaxies in…
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