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The Cosmic Perspective Fundamentals | 2nd Edition | ISBN: 9780133889567 | Authors: Jeffrey O. Bennett; Megan O. Donahue; Nicholas Schneider; Mark Voit
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QUESTION:

Problem 22SEQ

Explain answer clearly, using complete sentence and proper essay structure if needed. An asterisk (*) designates a quantitative problem, for which you should show all your work.

*Galactic Rotation. Our solar system is located about 28,000 light-years from the galactic center and orbits the center once every 230 million years. How fast are we traveling around the galaxy, in km/hr?

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QUESTION:

Problem 22SEQ

Explain answer clearly, using complete sentence and proper essay structure if needed. An asterisk (*) designates a quantitative problem, for which you should show all your work.

*Galactic Rotation. Our solar system is located about 28,000 light-years from the galactic center and orbits the center once every 230 million years. How fast are we traveling around the galaxy, in km/hr?

ANSWER:

Solution 22SEQ:

Step 1 of 3:-

        We need to find the speed of the solar system as it is rotating around the galactic centre.

The distance of the solar system from the galactic centre can be considered as the radius of a circular orbit.

The radius is, .

The time taken to complete one revolution is, .

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