Foundations of Astronomy
13th Edition
ISBN: 9781305079151
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 19, Problem 3RQ
What produced the helium now present in the Sun’s atmosphere? In Jupiter’s atmosphere? In the Sun’s core?
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Chapter 19 Solutions
Foundations of Astronomy
Ch. 19 - Why is the solar nebula theory considered a theory...Ch. 19 - Why was the nebular hypothesis never fully...Ch. 19 - What produced the helium now present in the Suns...Ch. 19 - What produced the iron and heavier elements such...Ch. 19 - Prob. 5RQCh. 19 - What evidence can you give that disks of gas and...Ch. 19 - According to the solar nebula theory, why is...Ch. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Why does the solar nebula theory predict that...
Ch. 19 - What evidence can you give that the Solar System...Ch. 19 - Prob. 12RQCh. 19 - Prob. 13RQCh. 19 - Prob. 14RQCh. 19 - Prob. 15RQCh. 19 - Prob. 16RQCh. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Prob. 19RQCh. 19 - Prob. 20RQCh. 19 - Prob. 21RQCh. 19 - What planet in the Solar System is larger than the...Ch. 19 - Why is almost every solid surface in the Solar...Ch. 19 - Prob. 24RQCh. 19 - Prob. 25RQCh. 19 - Prob. 26RQCh. 19 - What is the difference between condensation and...Ch. 19 - Why dont Terrestrial planets have ring systems...Ch. 19 - How does the solar nebula theory help you...Ch. 19 - Prob. 30RQCh. 19 - If rocks obtained from the Moon indicate an age of...Ch. 19 - Which is older, the Moon or the Sun? How do you...Ch. 19 - How does the solar nebula theory explain the...Ch. 19 - Did hydrogen gas condense from the nebula as the...Ch. 19 - Prob. 35RQCh. 19 - What happens if a planet has differentiated? Would...Ch. 19 - Order the following steps in the formation of a...Ch. 19 - Which step(s) listed in the previous question can...Ch. 19 - Describe two processes that could melt the...Ch. 19 - What is the evidence that Jupiter and Saturn are...Ch. 19 - Describe two processes that cleared the solar...Ch. 19 - What is the difference between a planetesimal and...Ch. 19 - Does Uranus have enough mass to have formed by...Ch. 19 - What properties of the gas and dust disks observed...Ch. 19 - Why would the astronomically short lifetime of gas...Ch. 19 - Prob. 46RQCh. 19 - Prob. 47RQCh. 19 - Describe three methods to find extrasolar planets.Ch. 19 - Why is the existence of hot Jupiters puzzling?...Ch. 19 - Prob. 50RQCh. 19 - The evidence is overwhelming that the Grand Canyon...Ch. 19 - Prob. 52RQCh. 19 - Prob. 1DQCh. 19 - Prob. 2DQCh. 19 - Prob. 3DQCh. 19 - Prob. 4DQCh. 19 - Prob. 5DQCh. 19 - Prob. 6DQCh. 19 - If you observed the Solar System from the vantage...Ch. 19 - Venus can be as bright as apparent magnitude 4.7...Ch. 19 - What is the smallest-diameter crater you can...Ch. 19 - Prob. 4PCh. 19 - Prob. 5PCh. 19 - You analyze a sample of a meteorite that landed on...Ch. 19 - You analyze a sample of a meteorite that landed on...Ch. 19 - Prob. 8PCh. 19 - Examine Table 18-2. What might a planets...Ch. 19 - Examine Table 18-2. What might a planets...Ch. 19 - Suppose that Earth grew to its present size in 10...Ch. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - What do you see in this image that indicates this...Ch. 19 - Why do astronomers conclude that the surface of...Ch. 19 - Prob. 3LTLCh. 19 - Prob. 4LTL
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- What produced the helium now present in the Sun’s atmosphere? In Jupiter’s atmosphere? In the Sun’s core?arrow_forwardCalculate the energy flux density at the average distance of Venus from the Sun rv (energy flux divided by surface area of sphere)Venus' distance from the Sun = rv = 1.082 x 1013 cmF = L /(4prv2) = ________________ ergs/sNext Calcuate the Amount of Solar Energy absorbed by Venus is the surface area of Venus which is facing the Sun (1/2 of Venus' surface area = 4pdv2 / 2 = 2pdv2 ) . Where dv = 6.052 x 106 cm is the radius of Venus. So Venus receives : E = F (2pdv2) = __________________ ergs/s from the Sun.The fraction of the energy flux received which is reflected into space is the albedo of Venus, av, which is about 0.76. The fraction of the energy flux which is absorbed is then (1-av) = 1. - 0.76 = 0.24. So the amount of energy actually absorbed by Venus in each second is Lv = (1-av)Ev.Lv = (1-av)Ev = ___________________ ergs/sarrow_forwardA new Terrestrial planet has been discovered orbiting a nearby Sun-like star. Astronomers have obtained spectra of this planet and determined that the atmosphere is composed of roughly 99% CO2, and the remaining 1% is mostly N2 and is very thin compared to Earth's atmosphere. Briefly describe how the planet could have developed such an atmosphere.arrow_forward
- Consider the greenhouse effect in an atmosphere model consisting of two infrared-opaque layers. Find the temperatures of both layers and the temperature of the planet's surface.arrow_forwardThe fraction of the energy flux received which is reflected into space is the albedo of Venus, av, which is about 0.76. The fraction of the energy flux which is absorbed is then (1-av) = 1. - 0.76 = 0.24. So the amount of energy actually absorbed by Venus in each second is Lv = (1-av)Ev. Lv = (1-av)Ev = ___________________ ergs/s And next calculate the effective temperature of Venus: Tv4 = (Lv/(4pdv2))/s = Lv/(4spdv2) = __________________ K4 and taking the square root of Tv4 twice in succession we get the effective Temperature Tv: Tv = [Lv/(4spdv2)]0.25 = _________________ K Calculate Venus' emittance assuming that the Venus' actual temperature, Tvr, is 472o C = 745 K: ev = Lv/(4pdv2s Tvr4) = __________________ .arrow_forwardB2arrow_forward
- Pure, solid water ice has an albedo A≈0.35. What is the minimum distance from the Sun at which a rapidly rotating ice cube would remain frozen? Between which two planets does this distance lie?arrow_forwardWhat allows moons of Jupiter and Saturn to have liquid interiors?arrow_forwardDo you think the Moon could retain an atmosphere of nitrogen for the age of the Solar System? Explain why or why notarrow_forward
- Gusts of the solar wind travel as fast as 1000 km/s. How many days would the solar wind take to reach Earth at this speed? (Note: The average distance to the Sun is 1.496 ✕ 108 km.)arrow_forward2. What percentage of the mass of the solar nebula consisted of elements other than hydrogen and helium?arrow_forwardCalculate the pressure p of the Venus atmosphere (it consists of CO2 at 477oC) at the height of 1 km from the planet surface, where p0=9.3 MPa. The planet mass is 4.9x1024 kg, its radius is 6050 kmarrow_forward
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