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Author Question: The center of our galaxy is believed to be occupied by the radio source known as ... (Read 25 times)

joblessjake

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on: Jul 27, 2018
The center of our galaxy is believed to be occupied by the radio source known as ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

What is the lifetime on the main sequence of a 2-solar-mass star compared to the approximately 10-billion-year life of our Sun? Pick the best answer.
 
  a. 1.8  1011 years
  b. 1.8  1010 years
  c. 1.8  108 years
  d. 1.8  106 years
  e. 1.8  103 years


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AaaA

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

Sgr A
Sagittarius A

Answer to Question 2

c


joblessjake

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Reply 2 on: Jul 27, 2018
:D TYSM

triiciiaa

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Reply 3 on: Yesterday
Excellent

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