A star is on the horizontal branch of the H-R diagram. Which statement is true?
A) It is burning both hydrogen and helium.
B) It is about to experience the helium flash.
C) It is burning only helium.
D) The star is contracting.
E) The star is about to return to the main sequence.
Correct Answer:
Verified
Q30: When a star's inward gravity and outward
Q31: Just as a low-mass main sequence star
Q32: The "helium flash" occurs at what stage
Q33: A star (no matter what its mass)spends
Q34: What inevitably forces a star like the
Q36: What are black dwarfs?
A)the lowest mass main
Q37: During the hydrogen shell-burning phase:
A)the star grows
Q38: Which of the following elements contained in
Q39: Refer to the figure above. At what
Q40: What temperature is needed to fuse helium
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