College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Question
Chapter 30, Problem 36P
To determine
The various hypotheses that explain the continuous expansion of the universe.
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Students have asked these similar questions
*I really just need to know how to figure out the last question, but I included the first two since the third is based on them*
If you observe light emitted from a distance object when the cosmic background temperature was Tz=54K, what is the redshift z of that light?
At that redshift, what was the diameter Dz of the universe at that time compared to the diameter of today's universe D0?
If you observe an emission line in the spectrum of that object at a wavelength of W nanometers, calculate the rest wavelength of that emission line?
Which of the following is an INCORRECT statement regarding the expanding universe theory?
A. Scientists were able to observe that all galaxies and star clusters are moving away from Earth because of the shift of the wavelength to the blue part of the visible spectrum.
B. Slipher from 1912 to 1914 studied the electromagnetic radiation of nearby spiral galaxies where he observed that wavelengths of yellow lines appear to be a little orange.
C. More recent observation using powerful telescopes confirm that frequency of light from nearby galaxies and star clusters decreases as it is observed here on Earth.
D. From the amount of Doppler shift, astronomers are able to compute for the speeds and determine the direction of the motion of nearby galaxies and star clusters.
The Big Bang Theory is currently the most widely-accepted explanation for the origin of the Universe. As technology has emerged, new data has been collected to allow for a clearer understanding of how the Universe is changing and the possible things that might happen to it in
the future. Which of the following is not a question that can be answered using scientific processes?
>What was the cause of the Big Bang?
>What is the type of energy emitted by celestial objects?>What is the rate at which the universe appears to be expanding?
>What are the chemical elements that exist in the other parts of the galaxy?
Chapter 30 Solutions
College Physics
Ch. 30 - Prob. 1RQCh. 30 - Prob. 2RQCh. 30 - Review Question 30.3 Using what you have learned...Ch. 30 - Prob. 4RQCh. 30 - Prob. 5RQCh. 30 - Prob. 1MCQCh. 30 - Prob. 2MCQCh. 30 - Prob. 3MCQCh. 30 - Prob. 4MCQCh. 30 - Prob. 5CQ
Ch. 30 - Prob. 6CQCh. 30 - Prob. 7CQCh. 30 - Prob. 8CQCh. 30 - Prob. 9CQCh. 30 - Prob. 10CQCh. 30 - Prob. 11CQCh. 30 - 12. What are the components of the Standard...Ch. 30 - Prob. 13CQCh. 30 - Prob. 14CQCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Prob. 4PCh. 30 - Prob. 5PCh. 30 - 6. Use Newtonian circular motion concepts to show...Ch. 30 - Prob. 7PCh. 30 - A particle enters a cloud chamber from above...Ch. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - 14. * Make an analogy between the interactions of...Ch. 30 - Why are neutrinos difficult to detect?Ch. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - Prob. 19PCh. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - * What is inflation, and what eventually happened...Ch. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - * Our bodies contain significant amounts of...Ch. 30 - 33. * What is the evidence that a large proportion...Ch. 30 - Prob. 34PCh. 30 - 35. * What is the experimental evidence for dark...Ch. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - * An electron and a positron are traveling...Ch. 30 - Prob. 41GPCh. 30 - Prob. 42RPPCh. 30 - Prob. 43RPPCh. 30 - Prob. 44RPP
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- There is still some uncertainty in the Hubble constant. (a) Current estimates range from about 19.9 km/s per million light-years to 23 km/s per million light-years. Assume that the Hubble constant has been constant since the Big Bang. What is the possible range in the ages of the universe? Use the equation in the text, T0=1H , and make sure you use consistent units. (b) Twenty years ago, estimates for the Hubble constant ranged from 50 to 100 km/s per Mps. What are the possible ages for the universe from those values? Can you rule out some of these possibilities on the basis of other evidence?arrow_forwardWhat causes galaxies, stars, and solar systems to form? * A) Visible matter and/or dark matter repel objects to create these groups of objects with the force of antigravity. B) Visible matter and/or dark matter create a strong gravitational force to form these groups of objects.. C) Dark energy causes these objects to be pulled in towards the planet.arrow_forwardWhich statement best describes the Big Bang Theory? O Galaxies within the universe collided about 13.5 billion years ago forming the present objects in the universe. O Existing objects in the universe move randomly with the potential of colliding in about 13.5 billion years. O Galaxies throughout the universe moved toward each other after an event that occurred about 13.5 billion years ago O Most objects in the universe are moving away from each other as a result of an event that occurred about 13.5 billion years ago. 21 22 23 24 25 26 27 28 Support | Schoology Blog | PRIVACY POLICYarrow_forward
- Which of the following can be concluded from the two premises below: 1. Whatever begins to exist has a cause 2. The universe began to exist some 14 billion years ago a. the universe must have a cause b. nothing c. the universe caused itself d. there must be a multiversearrow_forwardThe mass density of our universe is measured to be about 10-29 kg/m3. If an arbitrary point is chosen as the center, how large is the radius of a spherical surface centered at the point so that the mass enclosed in the surface will become a blackhole observed by someone outside the surface? A. 4.2 trillion light years B. 420 billion light years C. 42 billion light years D. 4.2 billion light years Is the answer D? Thanks!arrow_forwardOlbers’s paradox deals with which of these questions? a. Is the universe accelerating? b. Why is the sky dark at night? c. Is the universe expanding? d. Why does the sun shine so brightly? e. none of the abovearrow_forward
- 2- Solve the Friedman Equation for Benchmark Model and treat the Fate of the Universe for special cases. Why the Benchmark model is important?arrow_forwardThe presence of Dark Matter was theorized due to the curve of the data that the motion of the stars around the central core of our neighboring galaxy (Andromeda) has been approximately flat rather than decreasing at large distances. Which fundamental concept in this chapter helped us in understanding this phenomena? a.) Orbital speed b.) Escape speed c.) Law of equal areas d.) Law of elliptical orbits What happens to the magnitude of the force between two objects with the same mass if we double the distance between them? a.) The magnitude of the force will be doubled. b.) The magnitude of the force will be quadrupled. c.) The magnitude of the force will be halved. d.) The magnitude of the force will be 1/9 of its inital magnitude.e. Earrow_forwardDefine matter and antimatter.arrow_forward
- Galaxies are found in the “walls” of huge voids; very few galaxies are found in the voids themselves. The text says that the structure of filaments and voids has been present in the universe since shortly after the expansion began 13.8 billion years ago. In science, we always have to check to see whether some conclusion is contradicted by any other information we have. In this case, we can ask whether the voids would have filled up with galaxies in roughly 14 billion years. Observations show that in addition to the motion associated with the expansion of the universe, the galaxies in the walls of the voids are moving in random directions at typical speeds of 300 km/s. At least some of them will be moving into the voids. How far into the void will a galaxy move in 14 billion years? Is it a reasonable hypothesis that the voids have existed for 14 billion years?arrow_forwardIn which type of model universe is space-time infinite in extent and open? List all possibilities.arrow_forwardDescribe at least two characteristics of the universe that are explained by the standard Big Bang model.arrow_forward
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