ASTR 1200-001 HW set 1

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University of Colorado, Boulder *

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1200

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Physics

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Jan 9, 2024

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docx

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ASTR 1200-001 Homework Set 1 (20 Points) Assigned on Thursday August 26, 2021 Due Thursday September 2, 2021, at 2:20pm Show your work! Write full sentences explaining each step of your solution. Use the methods covered during class. Question 1 – Ratios I (10 Points): If our Sun were the size of a basketball (22cm) wide, what would the distance from the Sun to Saturn be? The distance to Saturn is 1,500,000,000 km, the size of the Sun is 1,400,000 km, 23,571cm First I divided 1,500,000,000km by 1,400,000km and got 1,071 and then multi- plied that by 22cm and got 23,571cm. Question 2 – Ratios II (10 Points): If our galaxy were 1m wide, what would the distance to the An- dromeda Galaxy be? The distance to Andromeda Galaxy is: 2.4 x 10 22 m (or 24,000,000,000,000,000,000 km), and the size of our galaxy is: 9.5 x 10 20 m (or 950,000,000,000,000,000 km) 25.26m All I did was divide 2.4x10^22 by 9.5x10^20 and got 25.26 meters.
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