Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Question
Chapter 8, Problem 1RQ
To determine
Why Earth-based parallax measurements are limited to the nearest star?
Expert Solution & Answer
Answer to Problem 1RQ
Earth-based parallax system is limited to nearest stars because earth atmosphere smears stars images which makes difficult to measure the parallax from earth.
Explanation of Solution
Measurement of parallax is a very difficult task because stars at a larger distance makea very small angle.
When we measure the parallax angle from Earth even from a very good observatory, the earth atmosphere smears the images of the star and makes the diameter of the star around 1 arc second, which makes it difficult to measure the parallax from Earth.
That is why Earth parallax system is limited to the nearest star.
Conclusion:
Because earth atmosphere smears stars images which makes difficult to measure the parallax from earth
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[25 marks]
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4₁
Figure Q1. Pipe system
Page 2
25 mm
For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off a mirror that is 53.5 km due east and have it detected by a light sensor that is 119 m due south of the laser. The first problem is to orient the mirror so that the laser light reflects off the mirror and into the light sensor.
(a) Determine the angle that the normal to the mirror should make with respect to due west.(b) Since you can read your protractor only so accurately, the mirror is slightly misaligned and the actual angle between the normal to the mirror and due west exceeds the desired amount by 0.003°. Determine how far south you need to move the light sensor in order to detect the reflected laser light.
Chapter 8 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 8 - Prob. 1RQCh. 8 - Why was the Hipparcos satellite able to make more...Ch. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 18RQCh. 8 - Prob. 19RQCh. 8 - How Do We know? In what way does accumulation of...Ch. 8 - Prob. 1DQCh. 8 - Can you think of classification systems used to...Ch. 8 - Prob. 3DQCh. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 5PCh. 8 - Prob. 6PCh. 8 - Prob. 7PCh. 8 - Prob. 8PCh. 8 - Prob. 9PCh. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 1LTLCh. 8 - Prob. 2LTL
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