Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 18, Problem 13P
To determine
The number of days solar wind takes to travel from Sun to Earth.
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Thinking about the Scale of the Solar System As we discussed, the radius of the Earth is approximately 6370 km. The Sun, on the other hand, is approximately 700,000 km in radius and located, on average, one astronomical unit (1 au=1.5x108 km) from the Earth. Imagine that you stand near Mansueto Library, at the corner of 57th and Ellis. You hold a standard desk globe, which has a diameter of 12 inches, and you want to build a model of the Sun, Earth, and their separation that keeps all sizes and lengths in proportion to one another. a) How big would the Sun be in this scale model? Give your answer in feet and meters. b) The nearest star to the Solar System outside of the Sun is Proxima Centauri, which is approximately 4.2 light years away (a light year is the distance light travels in one year, or approximately 9.5x1012 km). Given the scale model outlined above, how far would a model Proxima Centauri be placed from you? Give your answer in miles and km.
Raising a number in scientific notation to a power is easy:
(5 x 105)² = (5)² x (105)² = 5 x 5 x 105 x 105 = 25 x 10(5 × 2) = 25 x 1010 = 2.5 x 101¹1
Keeping this in mind, what is the volume of the sun in km³? The radius of the sun is about 7 x 105 km, and the volume of a sphere is 4/3 x Pi x R³. (Use 3.14 for Pi, and enter your answer with two decimal places).
km³
3
What is the average density of the Sun? Density = mass / volume. The mass of the sun is 2.0x10³0 kg.
kg/km³
A)At what altitude would a geostationary sattelite need to be above the surface of Mars? Assume the mass of Mars is 6.39 x 1023 kg, the length of a martian solar day is 24 hours 39minutes 35seconds, the length of the sidereal day is 24hours 37minutes 22seconds, and the equatorial radius is 3396 km. The answer can be calculated using Newton's verison of Kepler's third law.
Chapter 18 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 18 - Why was the nebular hypothesis never fully...Ch. 18 - What produced the helium now present in the Suns...Ch. 18 - What produced the iron and heavier elements such...Ch. 18 - Prob. 4RQCh. 18 - What evidence can you give that disks of gas and...Ch. 18 - Why is the solar nebula theory considered a theory...Ch. 18 - According to the solar nebula theory, why is...Ch. 18 - According to the solar nebula theory, why is there...Ch. 18 - Why does the solar nebula theory predict that...Ch. 18 - What evidence can you give that the Solar System...
Ch. 18 - What planet in the Solar System is larger than the...Ch. 18 - Why is almost every solid surface in the Solar...Ch. 18 - What is the difference between condensation and...Ch. 18 - Why dont Terrestrial planets have ring systems...Ch. 18 - How does the solar nebula theory help you...Ch. 18 - Prob. 16RQCh. 18 - If rocks obtained from the Moon indicate an age of...Ch. 18 - Which is older, the Moon or the Sun? How do you...Ch. 18 - How does the solar nebula theory explain the...Ch. 18 - Did hydrogen gas condense from the nebula as the...Ch. 18 - What happens if a planet has differentiated? Would...Ch. 18 - Order the following steps in the formation of a...Ch. 18 - Which step(s) listed in the previous question can...Ch. 18 - Describe two processes that could melt the...Ch. 18 - What is the evidence that Jupiter and Saturn are...Ch. 18 - Describe two processes that cleared the solar...Ch. 18 - What is the difference between a planetesimal and...Ch. 18 - Does Uranus have enough mass to have formed by...Ch. 18 - What properties of the gas and dust disks observed...Ch. 18 - Why would the astronomically short lifetime of gas...Ch. 18 - Prob. 31RQCh. 18 - Describe three methods to find extrasolar planets.Ch. 18 - Why is the existence of hot Jupiters puzzling?...Ch. 18 - The evidence is overwhelming that the Grand Canyon...Ch. 18 - Prob. 35RQCh. 18 - If you observed the Solar System from the vantage...Ch. 18 - Venus can be as bright as apparent magnitude 4.7...Ch. 18 - What is the smallest-diameter crater you can...Ch. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - You analyze a sample of a meteorite that landed on...Ch. 18 - You analyze a sample of a meteorite that landed on...Ch. 18 - Prob. 8PCh. 18 - Examine Table 18-2. What might a planets...Ch. 18 - Examine Table 18-2. What might a planets...Ch. 18 - Suppose that Earth grew to its present size in 10...Ch. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Prob. 1SOPCh. 18 - Prob. 2SOPCh. 18 - What do you see in this image that indicates this...Ch. 18 - Why do astronomers conclude that the surface of...Ch. 18 - Prob. 3LTLCh. 18 - Prob. 4LTL
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