If the Hubble's constant was 100 km/s/Mpc instead of 70 km/s/Mpc what would be the estimated age of the universe?
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Q: Calculate the number of miles in a light-year, using 1.86 105 mi/s as the speed of light. (Hint:…
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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: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…
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Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: Hubble’s time: It is defined as follows, Here H is the Hubble’s constant which has unit km/s/Mpc…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: Calculate the age of the universe when its temperature was 10¹¹ K.
A: The universe was once part of a singularity of very high density and temperature. All the forces and…
Q: How much of the universe appears to be the normal ordinary matter? Group of answer choices 50% 95%…
A: CONCEPT: Among the whole universe, only a small part is visible and the remaining part is…
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: What is the distance in parsec to pulsar 0628-28 using 400 and 600 MHz frequencies? The dispersion…
A: GIven for pulsar 0628-28, dispersion measure DM is 124.5We have to determine distance in parsec to…
Q: About what percentage of the universe is believed to be composed of normal matter? O 5% O > 22% O…
A: 68% of the matter is dark energy. 27% of the matter is dark matter. Rest less or equal to 5% is…
Q: Hubble's Law Constant provides the following information about the observable universe: galaxies…
A: Hubble's law constant, often denoted as H₀ provides an estimate of the current rate of expansion of…
Q: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
A: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
Q: Can we measure distances to other galaxies using parallax? Why or why not?
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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: How many galaxies are there in the universe?
A: A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and…
Q: Helium is common element in the Universe. True/False
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
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: Calculate the age of the universe when the temperature was 10¹ K.
A: The age of the universe when the temperature was 1013 K. Given, TemperatureT=1013 K
Q: What is the distance in light years (ly) to Alkaid? 12 ly 104 ly 55 ly 4 ly
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Q: If a 20 yr. old astronaut left to explore the galaxy in 2010 travelling at 1.30 x 108 m/s and…
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Q: Most of the dark matter in a galaxy is located in a galaxy's (hint: one word) which allows the…
A: It is a fill in the blank.
Q: The Hubble constant is (approximately) 70 kilometers per second per megaparsec. At approximately…
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Q: Was the Big Bang an explosion? Explain your answer.
A: the Big Bang wasn't an explosion that destroyed things.
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- To what extent do astronomers have the ability to see into the history of the universe?In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)How many times longer than the length of recorded history is the age of the universe? I was also given that the length of recorded history is 10E11 s, and that the age of the universe is 10E18 s. But, when putting 10E18/10E11 = 10E7, I get the wrong answer.
- Calculate the age of the universe for the following Hubble's constant, (a) 30 km/s/MpcPlace all of the following in order from earliest to the most recent: Dark energy begins acceleration of the expansion of the universe You study for your final in astronomy Last scattering of the Cosmic Microwave Background Radiation First stars and galaxies form Big Bang Universe becomes transparent (no longer opaque) aka photon decoupling time Inflationary Epoch Formation of first complex elements (hydrogen isotopes, helium & lithium)Please list 4 different forms of energy present in the universe?