Life in the Universe (4th Edition)
4th Edition
ISBN: 9780134089089
Author: Jeffrey O. Bennett, Seth Shostak
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 12RQ
Why does the Sun gradually brighten, and how does this brightening affect the location of the habitable zone over time? What do we mean by a continuously habitable zone?
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220 V is supplied to 800 primary turns of an autotransformer. What will the outputvoltage be across 200 secondary turns?
2. A filament transformer has a turns ratio of 1:20. What current must be supplied to theprimary windings if 5 A is required by the filament?
3. The filament transformer in the previous question is supplied with 150 V to theprimary side. What is the secondary voltage?
4. 440 V is supplied to 1000 primary turns of an autotransformer. If the desired outputvoltage is 100 V how many secondary turns must be tapped?
220 volts is supplied across 1200 winding of the primary coil of the autotransformer.If 1650 windings are tapped, what voltage will be supplied to the primary coil of thehigh-voltage transformer?2. A kVp meter reads 86 kVp and the turns ratio of the high-voltage step-up transformeris 1200. What is the true voltage across the meter?3. The supply voltage from the autotransformer to the filament transformer is 60 volts. If theturns ratio of the filament transformer is 1/12, what is the filament voltage?4. If the current in the primary side of the filament transformer in question 3 were 0.5 A,what would be the filament current?5. The supply to a high-voltage step-up transformer with a turns ratio of 550 is 190 volts.What is the voltage across the x-ray tube?
Chapter 10 Solutions
Life in the Universe (4th Edition)
Ch. 10 - What is a habitable zone, and how is the idea...Ch. 10 - Describe several ways in which it may be possible...Ch. 10 - Why do we think that Venus should have outgassed...Ch. 10 - How much water is present on Venus today? How do...Ch. 10 - What is a runaway greenhouse effect, and why did...Ch. 10 - Could Venus ever have had oceans and, if so, could...Ch. 10 - How do we expect the habitable zones of brighter...Ch. 10 - Why is planetary size important to habitability?...Ch. 10 - What factors besides size and distance from the...Ch. 10 - What factors affect the location of the inner...
Ch. 10 - What factors affect the location of the outer...Ch. 10 - Why does the Sun gradually brighten, and how does...Ch. 10 - How and when will Earth become uninhabitable? Why?...Ch. 10 - Briefly describe the eventual fates of the Sun and...Ch. 10 - How do we determine global average temperatures...Ch. 10 - What do ice core data tell us about the past...Ch. 10 - What is the role of climate modeling in...Ch. 10 - Describe several potential consequences of global...Ch. 10 - Decide whether each statement makes sense or does...Ch. 10 - Decide whether each statement makes sense or does...Ch. 10 - Venus is not in the habitable zone now, but a few...Ch. 10 - Decide whether each statement makes sense or does...Ch. 10 - Decide whether each statement makes sense or does...Ch. 10 - Prob. 24TYUCh. 10 - Decide whether each statement makes sense or does...Ch. 10 - Prob. 26TYUCh. 10 - Decide whether each statement makes sense or does...Ch. 10 - Prob. 28TYUCh. 10 - The habitable zone refers to (a) the regions of a...Ch. 10 - A planet that is not within a habitable zone...Ch. 10 - Choose the best answer to each of the following....Ch. 10 - Choose the best answer to each of the following....Ch. 10 - Choose the best answer to each of the following....Ch. 10 - Choose the best answer to each of the following....Ch. 10 - Choose the best answer to each of the following....Ch. 10 - Prob. 36TYUCh. 10 - Prob. 37TYUCh. 10 - Choose the best answer to each of the following....Ch. 10 - Science with Consequences. A small but vocal group...Ch. 10 - The Habitable Zone. Considering the possibility...Ch. 10 - Are Habitable Zone Planets Common? Based on what...Ch. 10 - No Plate Tectonics. Suppose plate tectonics...Ch. 10 - Continuously Habitable Zone. Is Earth in a zone...Ch. 10 - Planetary Changes. Write two or three paragraphs...Ch. 10 - Venuss History. Many people are not surprised to...Ch. 10 - Habitable Moons. As well discuss in Chapter 11,...Ch. 10 - Greenhouse Lessons. While it seems unlikely that...Ch. 10 - Global Warming. Briefly summarize the evidence...Ch. 10 - Massive Stellar Habitable Zone. Consider a star...Ch. 10 - Strength of Sunlight at Venus and Mars. The solar...Ch. 10 - Atmospheric Mass of Venus. The atmospheric...Ch. 10 - Prob. 58IFCh. 10 - The Politics of Global Warming. The current...Ch. 10 - Dealing with Uncertainty. One of the difficulties...
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