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Author Question: Deuterium abundance suggests that normal matter makes up only 3-4 of the critical density. ... (Read 55 times)

darbym82

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on: Jul 27, 2018
Deuterium abundance suggests that normal matter makes up only 3-4 of the critical density.
 
  Indicate whether the statement is true or false

Question 2

At spectral type B1, Spica is about three times hotter than the Sun, so every square cm. of Spica must give off ________ times more energy than our Sun does.
 
  Fill in the blank(s) with correct word


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micaelaswann

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

TRUE

Answer to Question 2

81 or 3 to the fourth power


darbym82

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

Liddy

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Reply 3 on: Yesterday
:D TYSM

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