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Author Question: Most of the planets discovered around other stars have masses comparable to the terrestrial planets ... (Read 72 times)

vicky

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on: Jul 27, 2018
Most of the planets discovered around other stars have masses comparable to the terrestrial planets in our own solar system.
 
  Indicate whether the statement is true or false

Question 2

You discover a binary star system in which one member is a 15 solar mass main-sequence star and the other star is a 10 solar mass giant star. Why should you be surprised, at least at first?
 
  A) The two stars should be the same age, so the more massive one should have become a giant first.
  B) The two stars in a binary system should both be at the same point in stellar evolution; that is, they should either both be main-sequence stars or both be giants.
  C) It doesn't make sense to find a giant in a binary star system.
  D) A star with a mass of 15 solar masses is too big to be a main-sequence star.
  E) The odds of ever finding two such massive stars in the same binary system are so small as to make it inconceivable.


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bd5255

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Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

A


vicky

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

abro1885

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Reply 3 on: Yesterday
Wow, this really help

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