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arc-sec 1. First convert this angle into radians. Given that 1° = 60 arc-min, 1 arc-min = 60 arc-sec and one radian is equal to 180/ degrees. 2. Since this is a very small angle as compared to 1 radian, so we can use tan BS = 1 AU, calculate AS. BS/AS≈ 0. Knowing

arc-sec 1. First convert this angle into radians. Given that 1° = 60 arc-min, 1 arc-min = 60 arc-sec and one radian is equal to 180/ degrees. 2. Since this is a very small angle as compared to 1 radian, so we can use tan BS = 1 AU, calculate AS. BS/AS≈ 0. Knowing

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Can i please get some help with this cosmology questions

2 AU Figure 2.1: Parsec into Km. In the figure B and C are two diametrically opposite positions of the Earth while it revolves around the sun. The star is located at point A and S is the Sun.
Transcribed Image Text:2 AU Figure 2.1: Parsec into Km. In the figure B and C are two diametrically opposite positions of the Earth while it revolves around the sun. The star is located at point A and S is the Sun.
Problem 1. In this problem we calculate how many Km are there in 1 pc. In Figure 2.1, ZSAB = 0 = 1 arc-sec 1. First convert this angle into radians. Given that 1° = 60 arc-min, 1 arc-min = 60 arc-sec and one radian is equal to 180/7 degrees. 2. Since this is a very small angle as compared to 1 radian, so we can use tan0 = BS/AS≈ 0. Knowing BS = 1 AU, calculate AS.
Transcribed Image Text:Problem 1. In this problem we calculate how many Km are there in 1 pc. In Figure 2.1, ZSAB = 0 = 1 arc-sec 1. First convert this angle into radians. Given that 1° = 60 arc-min, 1 arc-min = 60 arc-sec and one radian is equal to 180/7 degrees. 2. Since this is a very small angle as compared to 1 radian, so we can use tan0 = BS/AS≈ 0. Knowing BS = 1 AU, calculate AS.
Expert Solution
Step 1

We know, 

1° = 60 arc-min

1 arc-min = 60 arc-sec

1° = π/180 radian

 

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