Q5. Proof the following: (a) Using the Cartesian components of L, Proof that: [[Ly.Lz]y = 0 (b) L + L # (Ly + ilz)(Ly – iL2) (c) [L². L4] = 0

Q: Andromeda galaxy is the closest large galaxy and is visible to the naked eye. Estimate its…

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Q: 1- As the universe expands, a galaxy which is at a distance of  5.0 x 106 pc, is moving away from…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: If there is no observable edge to the universe, can we determine where its center of expansion is?…

A: Let’s explain by taking a simple example of a balloon analogy to explain the expansion of the…

Q: 20. Which of the following statements can support the Big Bang's principle of the expanding…

A: Option c)/ Is correct  The light from the distant galaxies is observed to be red shifted .

Q: 9. Redshift of light from many galaxies was first observed in the 1920s. What was the significance…

A: SOlution:

Q: (a) Calculate the approximate age of the universe from the average value of the Hubble constant, H0…

A: ( a ) To find the time  t =dv t = 1Mly106ly1Mly9.46×1012km1ly20km/s t = 4.73 x 1017s

Q: if you know that the life time of particle is 100*10-6 s. 1- what its life time if its moves by…

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: It is possible to derive the age of the universe given the value of the Hubble constant and the…

A: Given  distance of glaxy (d) = 235 million light-…

Q: What is formed when there is a fusion of two deuterium nuclei in big bang nucleosynthesis? 2. What…

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Q: I'm doing a debate about Kalam cosmological. I need to have an example of something out of nothing…

A: Answer:-  Atomic physics, Nuclear Physics, Relativistic Physics , Quantum physics, Thermodynamic and…

Q: 18. An intelligent alien living on a planet in the solar system orbiting Alpha Centauri, the nearest…

A: The time taken by the Alien to receive signals is, t=dv=4.367 light year6.0×1012 miles1 light…

Q: 18. An intelligent alien living on a planet in the solar system orbiting Alpha Centauri, the nearest…

A: Given: speed of signal = 186421 miles/hr distance travelled =4.367 light years   other information:1…

Q: 6. Recall equations (4b), (4b), (4c), (4c'), (4d), and (4d') thus: X = X0 + ¹/2 (Vxo +Vx) t y = yo +…

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Q: *39 Will the universe continue to expand forever? To attack this question, assume that the theory of…

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Q: When two galaxies collide, the stars do not generally run into each other, but the gas clou do…

A: Given When two galaxies collide, the stars do not generally run into each other, but the gas clouds…

Q: 1. Why big bang theory the most accepted theory on the origin of the universe?

A: “Since you have asked multiple questions which are not linked with each other, we will solve the…

Q: image15

A: We are authorized to answer the first question only. Please re-post the remaining questions…

Q: en, solve the following problems: A spaceship is travelling at 0.9cof light speed. If the pilot…

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Q: The great astronomer Edwin Hubble discovered that alldistant galaxies are receding from our Milky…

A: a)

Q: What are the postulates for the Special Theory of Relativity?

A: What are the postulates for the Special Theory of Relativity?

Q: (a) Calculate the approximate age of the universe from the average value of the Hubble constant, H0…

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Q: Define Unification, and why scientists are striving for the unification of all forces?

A: Required : Define Unification and why scientists are striving for the unification of all forces.

Q: 4) The cosmic calendar of Section 1.2 explains where we are in the universe in time. But time and…

A: Let the speed of light = c To find : the distance traveled by the light in 1 wek of cosmic calender…

Q: The center of our Milky Way galaxy is about 23000 ly away. (a) To eight significant figures, at what…

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Q: Dark Matter and Closure• Discuss the existence of dark matter.• Explain neutrino oscillations and…

A: Dark matter is yet to be observed directly. If there is any existence of the dark matter, there must…

Q: What evidence can you cite that the universe is flat?

A: What evidence can you cite that the universe is flat.

Q: What is Hubble’s law?

A: Hubble's law According to Hubble's law the galaxies  are expanding with the rate which is…

Q: ms of appeal in Pirate Port I Public 0f Whiworth Fibrary A Z Databases Course Homne X Join comershon…

A: Given:Drag coefficient = 0.90Cross-section area = 0.48 m2Velocity = 7.3 m/sEfficiency = 25%

Q: 1. What is wave-particle duality? How does it apply to photons and electrons? Why do we not…

A: Wave–particle duality is the concept in quantum mechanics that every particle or quantum entity may…

Q: Homework Statement The solar system is 25,000 light years from the center of our Milky Way galaxy.…

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Q: When we look at a particular star, we are seeing it as it was 380 years ago. How far away from us…

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Q: Hubble's First Attempt. Edwin Hubble's first attempt to measure the universe's expansion rate was…

A: (A)       150  km/s/ Mly  (B)   2.0 × 10 9   year

Q: 1) James wants to use drill, He needs to know ifit Spins fast enough, He sees that one is advertised…

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Q: 1. Which of these is true about the Big Bang model?   a. The singularity is an established,…

A: From the earliest known times to its subsequent large-scale evolution, the Big Bang theory has been…

Q: List the four forces of evolution. For each, state explicitly whether it is a strong or weak force…

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Q: Why is dark energy required to explain the universe as we see it today according to the Big Bang…

A: in this question we discuss about dark energy .

Q: 10. According to the Big Bang Theory, how old is the universe?

A: The scientists examined cosmic microwave background radiation to determine its age. The cosmic…