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Which of the following stars has a spectrum that peaks at the highest frequency?
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Q7: According to current scientific estimates, when did
Q18: Two stars, Betty and Wilma, are both
Q20: What is the most common form of
Q24: At approximately what temperature can helium fusion
Q42: The white dwarf that remains when our
Q54: Which of the following is not true
Q58: Kepler's Impact: In four years of operation,
Q76: How do we know the total mass
Q138: What is a planetary nebula?<br>A)the expanding shell