UNDERSTANDING THE UNIVERSE(LL)-W/CODE
3rd Edition
ISBN: 9780393869903
Author: PALEN
Publisher: NORTON
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Chapter 14, Problem 11QAP
To determine
The distance of galaxies used to state Hubble’s law.
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39.
The star forming region of a Spiral Galaxy will emit synchrotron radiation as a sun forms in the spiral arms.
True
False
5) The recessional velocity of a galaxy is found to be 0.52c. Calculate the redshift. (2
The theory that waves of compression move around the galaxy triggering star formation is called
a.
the flocculent theory.
b.
the spiral compression theory.
c.
the density wave theory.
d.
the differential rotation theory.
e.
none of the above.
Chapter 14 Solutions
UNDERSTANDING THE UNIVERSE(LL)-W/CODE
Ch. 14.1 - Prob. 14.1CYUCh. 14.2 - Prob. 14.2CYUCh. 14.3 - Prob. 14.3CYUCh. 14.4 - Prob. 14.4CYUCh. 14 - Prob. 1QAPCh. 14 - Prob. 2QAPCh. 14 - Prob. 3QAPCh. 14 - Prob. 4QAPCh. 14 - Prob. 5QAPCh. 14 - Prob. 6QAP
Ch. 14 - Prob. 7QAPCh. 14 - Prob. 8QAPCh. 14 - Prob. 9QAPCh. 14 - Prob. 10QAPCh. 14 - Prob. 11QAPCh. 14 - Prob. 12QAPCh. 14 - Prob. 13QAPCh. 14 - Prob. 14QAPCh. 14 - Prob. 15QAPCh. 14 - Prob. 16QAPCh. 14 - Prob. 17QAPCh. 14 - Prob. 18QAPCh. 14 - Prob. 19QAPCh. 14 - Prob. 20QAPCh. 14 - Prob. 21QAPCh. 14 - Prob. 22QAPCh. 14 - Prob. 23QAPCh. 14 - Prob. 24QAPCh. 14 - Prob. 25QAPCh. 14 - Prob. 27QAPCh. 14 - Prob. 28QAPCh. 14 - Prob. 29QAPCh. 14 - Prob. 30QAPCh. 14 - Prob. 31QAPCh. 14 - Prob. 32QAPCh. 14 - Prob. 33QAPCh. 14 - Prob. 34QAPCh. 14 - Prob. 35QAPCh. 14 - Prob. 36QAPCh. 14 - Prob. 37QAPCh. 14 - Prob. 38QAPCh. 14 - Prob. 39QAPCh. 14 - Prob. 40QAPCh. 14 - Prob. 41QAPCh. 14 - Prob. 43QAPCh. 14 - Prob. 44QAPCh. 14 - Prob. 45QAP
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- Why can we not determine distances to galaxies by the same method used to measure the parallaxes of stars?arrow_forwardWhich of the following statements about the different types (shapes) of galaxies are correct? (choose all that apply) whatever type a galaxy is at its birth, that’s what it will be for all time what type we see a galaxy to be just depends on the angle at which we happen to see it; all galaxies look roughly the same in shape all galaxies start out as ellipticals, but some later evolve to be spirals and irregulars collisions and mergers between galaxies can sometimes change a galaxy’s type (shape)arrow_forwardThe Hubble Law, equation (D), can be used to determine the age of the universe. Using your average valueof H, calculate the recessional velocity of a galaxy of a galaxy which is 800 Mpc away.Velocity of a galaxy 800 Mpc away: _______________________________km/secarrow_forward
- The evidence leads modern astronomers to conclude that at the cores of active galaxies are supermassive black holes with masses as high as a. ten solar masses. b. a thousand solar masses. c. a million solar masses. d. a billion solar masses.arrow_forward3:00 PM Fri 23 Apr * * ni 26% web.whatsapp.com + blob:https://web.whatsapp.com/d4009cff-8... G Identify the names of the four major arms of... W Inflation (cosmology) - Wikipedia in this water body. 4 of 9 Q.5 Identify the names of the four major arms of Milky way galaxy : a) Norma and Cygnus, Sagittarius, Scutum-crux, Perseus. b) Norma and Cygnus, Orion, Scrotum-crock, Perseus. c) Norma and Clittorus, Sagittarius, Scrotum-crux, Perseus. d) Norma and Cygnus, Orion , Scutum-crux, Perseus. Q.6 In a far far away Galaxy lies a solar system untold, wherein, lies the planet, Stephenland inhabited by Meeseeks (a simple, but sentient species ). Their planet is invaded by the dreaded Brainiac Titanoids and their minions, P'nados . They started exploiting the natural resources of the planet at a scale, wherein, it actually started having affecting the mass of the planet. The mass lost was so huge that the atmosphere of the planet was actually endangered. They're now facing the threat of a waning…arrow_forwardGalaxy seeds around which galaxies, clusters, and walls grew may have been a. caused by hot dark matter. b. caused by baryons. c. the result of the separation of the electromagnetic and weak forces. d. the result of freezing water molecules shortly after the universe became transparent to photons. e. caused by microscopic random fluctuations in the infant universe.arrow_forward
- Some intergalactic properties. Use excel calculator to fill in the missing calculations. 1pc = 3.26 lyarrow_forwardWhat triggers the nucleus of a galaxy into activity? a. a nova explosion b. a type I supernova explosion c. a hypernova explosion d. a type II supernova explosion e. none of the abovearrow_forward5) A black hole in the center of a nearby Galaxy has a Schwarzchild radius of 2.0*10^7 km. How many times more massive than Sagittarius A* (~4*10^6 solar masses) is said black hole ?arrow_forward
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