Answer: 3.6 degrees.
Step-by-step explanation:
To find the angle through which the Milky Way Galaxy will rotate over a period of 2,000 years, we can use the given information that it rotates once every 200,000,000 years. Here's how you can calculate it:
1. Calculate the fraction of a full rotation that occurs in 2,000 years:
Fraction = (2,000 years) / (200,000,000 years).
2. Simplify the fraction:
Fraction = 1 / 100,000.
3. To find the angle, we need to multiply the fraction by 360 degrees (a full rotation):
Angle = (1 / 100,000) * 360.
4. Calculate the angle:
Angle = 3.6 degrees.
Therefore, over a period of 2,000 years, the Milky Way Galaxy will rotate through an angle of 3.6 degrees.