As a rotating gas cloud contracts, it spins
A) at a constant rate.
B) faster due to an increase in angular momentum.
C) slower due to conservation of angular momentum.
D) slower due to a decrease in angular momentum.
E) faster due to conservation of angular momentum.
Question 2
The mass enclosed in any orbit can be estimated from the equation M(
A) The mass is spread out over large radius.
B) The mass is concentrated in the center.
C) The mass is distributed like a doughnut, with a hole in the center.
D) Cannot be determined from the information given.
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