Foundations of Astronomy
13th Edition
ISBN: 9781305079151
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 19, Problem 8P
To determine
The object whose observed density differs the least from it’s uncompressed density and it’s reason.
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The astronomer claims that the frequency, f, of a vibrating star depends on its radius R, density r and gravitational constant G. Use dimensional analysis to find this dependence, if f is measured in s-1 and the units of G are L3/(MT2).
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BINARY STARS
31
Problem 5. Binary star systems: Center of mass. (Palen, et. al. Chp. 10 1st Ed.
Problem 65)
d2
m, = 3m,
The center of mass is where
the fulcrum of a balance must be.
m2
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FIGURE 10.15 The center of mass of two objects is the "balance" point on a line joining the
centers of two masses.
Study Figure 10.15 in the text (1st ed.). Where would the center of mass be located
if
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docs.google.com/document/d/1UpdqZs7NIZ-YyjMagyW1hbk0T5S2ZUBluFm-OB5PACA/edit
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Problem 3. Brightness and Luminosity
31
The brightness or flux intensity of a star at an observer's location may be
determined by measuring the rate at which its light enters the aperture of an
observing instrument (this is referred to as photometry). We will call this "" (with
units [Energy/time/Area] or [Watts/Area]). Imagine a sphere of radius, d (labeled
"p" in the figure below), equal to the star's distance from the observer's location,
at which the star is at the center (see the figure below). ALL of the star's light
passes through the surface area of this sphere but only a small fraction passes
through the instrument aperture. The fraction of the star's rate of light energy
emission measured by the instrument is…
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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