Homework Help for Astronomy (page 5)
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Which of the following statements about the celestial sphere is not true?
a. The celestial sphere does not exist physically.
b. When we look in the sky, the stars all appear to be located on the celestial sphere.
c. The Earth is placed at the center of the celestial sphere.
d. The "celestial sphere" is another name for our universe.
Which of the following statements about degeneracy pressure is not true?
A. Degeneracy pressure varies with the temperature of the star
B. Degeneracy pressure can halt gravitational contraction of a star even when no fusion is occurring
C. Degeneracy pressure keeps any protostar less than 0.08 solar mass from becoming a true hydrogen-fusing star
D. Degeneracy pressure supports white dwarfs under gravity
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