Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 13, Problem 22E
Refer to Example 13.1. How would the calculation change if a typical comet in the Oort cloud is only 1 km in diameter?
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There is one part to this question. I need to know the days. Thank you!
It is believed there are 2.7 x 1012 comets in the Oort Cloud, which has a radius of 71000.0 AU. Calculate the average volume that each comet has to itself. Then take the cube root of the average volume per comet to find their typical spacing in AU.
It is believed that there are a 1.2 × 1012 comets in the Oort Cloud, which has a radius of 74000.0 AU. What is the total volume of the Oort Cloud in cubic AU?
Chapter 13 Solutions
Astronomy
Ch. 13 - Why are asteroids and comets important to our...Ch. 13 - Give a brief description of the asteroid belt.Ch. 13 - Describe the main differences between C-type and...Ch. 13 - In addition to the ones mentioned in Exercise...Ch. 13 - Vesta is unusual as it contains what mineral on...Ch. 13 - Compare asteroids of the asteroid belt with...Ch. 13 - Briefly describe NASA’s Spaceguard Survey. How...Ch. 13 - Who first calculated the orbits of comets based on...Ch. 13 - Describe the nucleus of a typical comet and...Ch. 13 - Describe the two types of comet tails and how each...
Ch. 13 - What classification is given to objects such as...Ch. 13 - Describe the origin and eventual fate of the...Ch. 13 - What evidence do we have for the existence of the...Ch. 13 - Give brief descriptions of both the Kuiper belt...Ch. 13 - Give at least two reasons today’s astronomers are...Ch. 13 - Suppose you were designing a spacecraft that would...Ch. 13 - Suppose you were designing a spacecraft that would...Ch. 13 - Suppose a comet were discovered approaching the...Ch. 13 - We believe that chains of comet fragments like...Ch. 13 - Why have we found so many objects in the Kuiper...Ch. 13 - Why is it hard to give exact diameters for even...Ch. 13 - Refer to Example 13.1. How would the calculation...Ch. 13 - Refer to Example 13.1. How would the calculation...Ch. 13 - The calculation in Example 13.1 refers to the...Ch. 13 - If the Oort cloud contains 1012 comets, and ten...Ch. 13 - The mass of the asteroids is found mostly in the...Ch. 13 - Make a similar estimate for the mass of the Kuiper...Ch. 13 - What is the period of revolution about the Sun for...Ch. 13 - What is the period of revolution for a comet with...
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- Refer to Example 13.1. How would the calculation change if a typical comet in the Oort cloud is larger-say, 50 km in diameter?arrow_forwardIf the velocity of the solar wind is about 4.0 ✕ 102 km/s and the visible tail of a comet is 5.0 ✕ 108 km long, how many days does an atom in the solar wind take to travel from the nucleus to the end of the visible tail? (Note:1 day = 86,400 seconds.)arrow_forwardIf the velocity of the solar wind is about 4.0 102 km/s and the visible tail of a comet is 1.0 108 km long, how many days does an atom in the solar wind take to travel from the nucleus to the end of the visible tail? (Nate: 1 day = 86,400 seconds.)arrow_forward
- Explain the role of impacts in planetary evolution, including both giant impacts and more modest ones.arrow_forwardIt is believed that there are 1.6*10^12 comets in the spherical Oort Cloud,which has radius of 46000 AU.Calculate the average volume that each comet has to itself.Then take cube root of average volume per comet to find their typical spacing in AU.arrow_forwardPlease provide the solution of advance physics.arrow_forward
- ____ daysarrow_forwardIf the velocity of the Solar Wind about 4.0 x 10^2 km/s and the visible tail of a comet of 9.0 x 10^8 km long, how many days does an atom in the solar wind take to travel from the nucleus to the end of the visible tail? (note: 1 day= 86,400 sec) _______ daysarrow_forwardThere is one part to this question. I need to know the km. Thank you!arrow_forward
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