If the accepted value of H were to double,
A) the critical density would be halved.
B) the age of the universe would be twice as old as we originally believed.
C) the age of the universe would be half what we believed.
D) the ages of the oldest globular clusters would be invalid.
E) the Copernican principle would not be valid beyond our solar system.
Question 2
One possible explanation for a galaxy's type invokes the angular momentum of the protogalactic cloud from which it formed. Suppose a galaxy forms from a protogalactic cloud with a lot of angular momentum.
Assuming its type has not changed due to other interactions, we'd expect this galaxy to be ________.
A) a spiral galaxy B) an elliptical galaxy
C) a torn and incoherent galaxy D) an irregular galaxy
The spongy bone in the top of the femur changes density and organization during growth.
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