If an Interstellar Cloud Having a Diameter of 10¹⁶ M

question 49

Multiple Choice

If an interstellar cloud having a diameter of 10¹⁶ m and a rotation period of a million years were to collapse to form a sphere that had the diameter of our Solar System, approximately 40 AU, what would its rotation period be? Assume the cloud's total mass and angular momentum did not change.

• A) 1 million years
• B) 600 years
• C) 1 year
• D) 6 years
• E) 4 months

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