COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135729458
Author: Bennett
Publisher: PEARSON
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Chapter 17, Problem 39EAP
Part a:
To determine
To Discuss:Sun cannot continue supplying Earth with light and heat forever.
Part b:
To determine
To Discuss:Sun will become a red giant before the end of its life.
Part c:
To determine
To Discuss: Sun will leave behind a white dwarf after it dies.
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Based on what you know about main-sequence stars, select all of the correct statements from the following list.
1. Since the interiors of stars cannot be observed, there are no theories about their structure.
2. More massive stars are hotter and brighter.
3. The weight of a star must be balanced by internal pressure.
4. More massive stars live longer; they take longer to use up all their energy.
5. Stars change position on the main sequence throughout their lives.
6. Outward energy flow in a star is by conduction only.
A group of graduate students, bored during a cloudy night at a the observatory, begin to make bets about the time different stars will take to evolve.
If they have a cluster of stars which were all born roughly the same time, and want to know which star will become a red giant first, which of the following stars should they bet on?
a. a star that would type O on the main sequence star
b. a star about 1/2 the mass of our sun
c. a star about 8% the mass of our sun
d. all stars reach the red giant stage in roughly the same number of years
Chapter 17 Solutions
COSMIC PERSPECTIVE
Ch. 17 - Prob. 1VSCCh. 17 - Prob. 2VSCCh. 17 - Prob. 3VSCCh. 17 - Prob. 4VSCCh. 17 - Prob. 1EAPCh. 17 - Prob. 2EAPCh. 17 - Prob. 3EAPCh. 17 - Prob. 4EAPCh. 17 - Prob. 5EAPCh. 17 - Prob. 6EAP
Ch. 17 - Prob. 7EAPCh. 17 - Prob. 8EAPCh. 17 - What will happen to Earth as the Sun changes in...Ch. 17 - Prob. 10EAPCh. 17 - Prob. 11EAPCh. 17 - Prob. 12EAPCh. 17 - Why cant iron be fused to release energy?Ch. 17 - Prob. 14EAPCh. 17 - Prob. 15EAPCh. 17 - Prob. 16EAPCh. 17 - Does It Make Sense? Decide whether the statement...Ch. 17 - Does It Make Sense? Decide whether the statement...Ch. 17 - Prob. 19EAPCh. 17 - Prob. 20EAPCh. 17 - Prob. 21EAPCh. 17 - Prob. 22EAPCh. 17 - Prob. 23EAPCh. 17 - Prob. 24EAPCh. 17 - Prob. 25EAPCh. 17 - Prob. 26EAPCh. 17 - Prob. 27EAPCh. 17 - Prob. 28EAPCh. 17 - Prob. 29EAPCh. 17 - Prob. 30EAPCh. 17 - Prob. 31EAPCh. 17 - Prob. 32EAPCh. 17 - Prob. 33EAPCh. 17 - Prob. 34EAPCh. 17 - Prob. 35EAPCh. 17 - Prob. 36EAPCh. 17 - Prob. 37EAPCh. 17 - Prob. 39EAPCh. 17 - Prob. 40EAPCh. 17 - Prob. 41EAPCh. 17 - Prob. 42EAPCh. 17 - Prob. 43EAPCh. 17 - Prob. 44EAPCh. 17 - Prob. 47EAPCh. 17 - Prob. 48EAPCh. 17 - Prob. 49EAPCh. 17 - Prob. 50EAPCh. 17 - Prob. 51EAPCh. 17 - Prob. 52EAPCh. 17 - Prob. 53EAPCh. 17 - Prob. 54EAPCh. 17 - The Speed of Supernova Debris. In the year 2001,...
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- Which of the following statements about various stages of core nuclear burning (hydrogen, helium, carbon, etc.) in a high- mass star is not true? A. As each stage ends, the core shrinks and heats further. B. Each successive stage creates an element with a higher atomic number and atomic mass number. C. As each stage ends, the reactions that occurred in previous stages continue in shells around the core. D.Each successive stage lasts for approximately the same amount of time.arrow_forwardFor each statement concerning main sequence stars, select T True, F False, G Greater than, L Less than, or E Equal to. A) The surface temperature of a O type star is .... than a K type star. B) On the main sequence, the mass of a O type star is .... than a F type star. C) On the main sequence, a M type star's life is .... than a G type star. D) The surface temperature of our Sun is .... than the surface temperature of Sirius. E) When stars start hydrogen burning, thier mass determines where they are on the main sequence. F) Based on the relative lifes of M and G type stars we expect the number of M stars to be .... than the number of G type stars.arrow_forwardD Question 9 Which of the following stages of stellar evolution creates and ejected balloon of material called a planetary nebula? O Hydrogen Fusion Multiple Shell Fusion. O Supernova O Hydrogen Shell Fusion O Helium Flash Hellum Fusion,arrow_forward
- Which of the following is wrong? A. Tidal effects in a binary star system become more important when one or both stars become giant stars. B. There is no fusion occurring in the core of a low-mass red giant star. C. Gold (the element) is produced during the supernova explosions of high-mass stars. D. Suppose the star Betelgeuse were to become a supernova tomorrow, we'd see by naked eyes a cloud of gas expanding away from the position where Betelgeuse used to be. Over a period of a few weeks, this cloud would fill a large part of our sky.arrow_forwardWhich of the following types of data provide evidence that helps us understand the various stages of the life tracks of low-mass stars? A. H-R diagrams of open clusters B. spacecraft observations of the Sun C. observing a low-mass star over many years D. H-R diagrams of globular clustersarrow_forwardYou discover a binary star system in which one member is a 15 solar-mass main-sequence star and the other star is a 10 solar-mass giant. Why should you be surprised, at least at first? A. It doesn't make sense to find a giant in a binary star system. B. The two stars in a binary system should both be at the same point in stellar evolution; that is, they should either both be main-sequence stars or both be giants. C. The two stars should be the same age, so the more massive one should have become a giant first. D. The odds of ever finding two such massive stars in the same binary system are so small as to make it inconceivable that such a system could be discovered. E. A star with a mass of 15 solar-mass is too big to be a main-sequence star.arrow_forward
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