The phrase "hydrostatic equilibrium" in the Sun refers to the
A) balance of gas pressure outward and magnetic forces inward.
B) creation of one helium nucleus for the "destruction" of every four hydrogen nuclei.
C) balance of gas pressure inward and heat outward.
D) balance of gravity inward and gas pressure outward.
Correct Answer:
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Q18: The most efficient means of energy transport
Q19: In the famous equation E = mc2,c
Q20: Energy diffuses outward from the core of
Q21: The neutrino is
A) an uncharged nuclear particle
Q22: Which of the three ways by which
Q24: What is nuclear fusion?
A) A heavy nucleus
Q25: About how much longer can the Sun
Q26: What is a positron?
A) The nucleus of
Q27: Where is most of the mass of
Q28: When four protons collide to form helium,what
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