Redshift of light from quasar with a “z” value of 3.3 , we are observing quasar as it was_______. 11.7 Billion years ago. 13.2 Billion years ago. 3.3 Billion years ago. 8.2 Billion years ago.
Q: What evidence is there that quasars occur in distant galaxies? Explain.
A: To explain the correct answer is given below,
Q: The large look-back times of the farthest galaxies and quasars is about ______________ of the way…
A: The large look-back times of the farthest galaxies and quasars is about ______________ of the way…
Q: The electric field everywhere on the surface of a thin, spherical shell of radius 0.775 m is of…
A:
Q: If the cosmological microwave background was emitted by a plasma with a temperature temperature of…
A: The expression from the Wien's displacement law is λmT=k .......................................…
Q: 1. Quasar F (for Far) has the same luminosity as Quasar N (for Near), But F is 10 times further…
A: The relation between luminosity and brightness is given as L = I/d2 where I is apparent brightness…
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A: Life time of particle normally is, t=100 x 10-6 s Speed of the particle moving at, v=0.96c Where c…
Q: 10. Sirius is about 9.00 ly from Earth. To reach the star by spaceship in 15.0 y (ship time), how…
A: Given:- Sirius is about 9.0 ly from the earth To reach the star by spaceship in 15.0 y(ship time )…
Q: The objects that are detected at the points where the gas of a radio jet hits the extragalactic…
A: The quasar are small and the powerful source if energy that is active core of very distant galaxies.
Q: Which of the following events in the early universe likely came first? a. Formation of the…
A: Answer: (b) Big Bang Nucleosynthesis
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A: The big bang is the focal point of the most convincing theory explaining the origin of our…
Q: What started the clumping of matter in the early universe that eventually became the seeds of…
A: The force that is carried by the field of virtual astronomical particles in the quantum field is…
Q: When we observe the most distant galaxies what are we looking at?
A: Question: When we observe the most Distant galaxies what are we looking at.
Q: What is meant by proper time and proper length?
A: Define Proper time and proper length.
Q: A galaxy has a visible mass of 10 Mo and a flat rotation curve extending to 25 kpe at the level of…
A: Let MT denote the total mass of the galaxy. Let R and v denote the radius of the galaxy and velocity…
Q: At what redshift will the Lya line (2o = 1215°A) be centered in the Johnson-Cousins U band? (Quasars…
A: From the redshift formula, we have 1+z=λobsλemitz=redshiftλobs=obserevd…
Q: The observable universe I. is the entire universe. II. is the part of the universe we can see.…
A: Answer d. II and IV
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Q: 1929, Edwin Hubble examined the relation between distance and redshift of 46 galaxies by Observing…
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Q: What strong evidence found in the mid-1960s led to wide acceptance of the big bang theory of the…
A: We need to find the evidence that led to wide acceptance of the big bang theory of the universe.
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A: So the lifetime of neutrons is very crucial in shaping the universe as it is now. Even a slight…
Q: 3. Consider the following two universes: Universe I: flat, matter-dominated with no cosmological…
A:
Q: In a Universe with Ω=1, without the presence of dark energy, the expansion of the Universe would a.…
A: Dark energy is the energy present in our universe in a high amount which is something 60% and many…
Q: observation made on E
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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: A star "X" is 15 light years away from us. An alien on that star sends a light signal today on 22nd…
A: Solution: As given a star X is 15 light years away from us. An alien on that star sends a light…
Q: Which of the following is true of the cosmic microwave background radiation as we observe it today?…
A: Given:
Q: 7.) Explain what dark energy implies for the composition and age of the universe.
A: Dark energy is a hypothetical form of energy that is believed to exist in the universe and is…
Q: The flatness problems states that a. the density of the universe is very close to the critical…
A: The flatness problem is a fine tuning problem of cosmology in the Big-Bang theory. Here, density of…
Q: The hydrogen Balmer line Hγ has a wavelength of 434.0 nm in the laboratory. It is observed in a…
A: Quasi-stellar objects or quasars are the distant objects in the universe. They are hard to detect…
Q: 1). Astronomical redshift. A galaxy is observed to be receding from us at a speed of 7500 kilometers…
A:
Q: 3. What are heat engines? How do they work? 2. How is the second law expressed? Give examples. 4…
A: Sadi Carnot, the father of thermodynamics, was one of these scientists, publishing Reflections on…
Q: The hydrogen Balmer line Hβ has a wavelength of 486.1 nm in the laboratory. It is observed in a…
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Q: hist alown, cosmic noon and the present day. histor
A:
Q: What's the average density (in kg/m^3) inside the event horizon of a black hole with mass 4*10^6…
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Q: If the mass density of the universe is above the critical density as it appears to be with the mass…
A: Given, The mass density of the universe is above the critical density.
Q: Big Bang Theory?
A: the ratio helium to hydrogen observed in universe is not a direct piece of evidence in support of…
Q: The presence of Dark Matter was theorized due to the curve of the data that the motion of the stars…
A: Answer:- Answer (1) :- (c) Laws of equal area . Because According to Kepler's second law A…
Q: Which of the following represents the notion that our observable Universe may be a part of a much…
A: To find which represent the notion that our observable universe may be part of much larger whole?
Q: We believe that the big bang occurred 13.8 billion years ago. Give 3 reasons why scientists believe…
A: There are several lines of evidence that support the idea that the universe is 13.8 billion years…
Q: In 1998, it was announced that the expansion of the universe is accelerating. What does this imply…
A: The expansion of the universe is accelerating it means universe is always expanding and it will…
Q: The universe has been said to be closed if I. gravity is strong enough to stop the expansion in a…
A: i) right The gravity is a kind of force which bound the universe or can say it hold the stars…
Q: Make a web search and explain in your own words a method to measure distances in universe.
A: There are different methods to measure distances in universe.
Q: 4. Black holes are theorized to form from (HS-ESS1-3) a. very massive planets that collide with very…
A: Black holes are the most dense objects found in the entire universe. They are so dense that a…
35.
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11.7 Billion years ago.
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13.2 Billion years ago.
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3.3 Billion years ago.
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8.2 Billion years ago.
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