Two Molecular Clouds Have Identical Densities,but Cloud a Has a Radius

question 24

Multiple Choice

Two molecular clouds have identical densities,but cloud A has a radius four times larger than cloud B.How much longer will it take cloud A to collapse than cloud B?

• A) They collapse on the same timescale.
• B) twice as long
• C) 4 times as long
• D) 16 times as long

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