Explain why Olbers’s paradox is not a paradox.
Q: Please explain this question If the universe had expanded more slowly than it did, the transition…
A: Required : How is the argument wrong.
Q: As the Universe becomes older, what effect will that have on a slope of the Hubble's diagram: It…
A: Doppler effect in light is the change in frequency of light observed by the observer when the source…
Q: https://www.compadre.org/PQP/special-relativity/prob2_1.cfm
A: the problem states:Chapter 2: Space & Time in Special RelativityProblem 2.1: Which of these is…
Q: (b) Draw the shape of the Milky Way for a spaceship with a velocity of 20%, 50%, and 90% of the…
A:
Q: Use as an example the cases of the filled subshells of configuration ns? and np° to illustrate, by…
A:
Q: explain semi-classical gravity
A: Solution: To explain the semi classical gravity
Q: What is a mass difference, and how does it arise?
A: To explain: Mass difference.
Q: In what ways did the astronomical observations of Galileo support a heliocentric cosmology? Describe…
A: The question is asking about how Galileo's astronomical observations supported the idea of a…
Q: How do black holes form and what is their effect on the surrounding universe?
A: One of the strangest things in the universe is Blackholes. Blackholes are highly massive and the…
Q: How does string theory attempt to unify quantum mechanics and general relativity?
A: String theory attempt to unify Quantum mechanics and general relativity
Q: What does this Feynman diagram represent? How does it explain what is happening? Time Space
A: The given Feynman Diagram here represents one of the ways how the scattering of two electrons takes…
Q: Let's say a spaceship is approaching Sagittarius A*. How close to this black hole must the spaceship…
A: The formula for gravitational time dilation is given by t=t01-2GMrc2 here, t=time in the…
Q: Explain the Continuum and it's properties?
A: Continuum definition and properties
Q: How do we measure Dark Matter?
A: Two methods were used by DES scientists to measure dark matter. Firstly, maps of galaxy positions as…
Q: Given the possible sources of gravitational waves in the universe, would you expect them to have…
A: Gravitational wave radiated by a charged particle will be weaker than the electromagnetic wave…
Q: what does the paradox entail in reality
A: In this question we have to explain the paradox entail in reality. Please give positive feedback if…
Q: 17). If you were to live another 65 years and there was a starship ready to go right now, how fast…
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Q: Olbers’s paradox poses an interesting question: If the universe is infinite, then any line of sight…
A: Since the speed of light is finite, we are only able to see as far as light has had to travel which…
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: What do you mean by proper time and proper lenght?
A: Proper time and proper length can be defined as:
Q: Can we measure distances to other galaxies using parallax? Why or why not?
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Q: Does observed gravitational lensing correspond to a converging or diverging lens? Explain briefly.
A: Gravitational lensing: In this effect, the light rays bend towards massive objects in the space due…
Q: What evidence shows that the universe is flat
A: Exact shape of the universe can not be predicted.
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: Problem 3. The critical mass density of the Universe at the current epoch is given by 3 Pc,0 = H²,…
A: Solution: 1. the critical mass density of the universe is given by, ρc,0=38πGH02,H0=70 km/s/Mpc 1…
Q: Answer the following. Albert Einstein’s significant contribution in understanding the universe was…
A: solution as
Q: How fast and in what direction must galaxy A be moving relative to us if an absorption line found at…
A: Relativistic Doppler Effect: When a source emitting waves of certain frequency and wavelength moves…
Q: What is the twin paradox?
A: the twin paradox is a thought experiment in special relativity involving identical twins, one of…
Q: What is negatively curved universe?
A: A surface has negative curvature at a point if the surface curves away from the tangent plane in two…
Q: The discovery of the dark energy was a surprise because astrophysicists generally assumed that the…
A: Conclusion of the Hubble's Law:The conclusion of the Hubble's law is that the universe is…
Q: is 4D spacetime
A: physics, spacetime is a mathematical model which combines the three dimensions of space and one…
Q: Briefly explain the twin paradox, emphasizing what is paradoxical in the statement and how this…
A: The twin paradox theory is a special relativity thought experiment in which one of two identical…
Q: Supposed that we were to discover that all galaxies are actually twice as far away as we think. How…
A:
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