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nmar nmar
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6 years ago
Which two jovian planets have magnetic field tilts that are NOT along their rotation poles?
 
  A) Saturn and Neptune
  B) Uranus and Neptune
  C) Jupiter and Uranus
  D) Jupiter and Saturn
  E) All jovian planets have magnetic fields close to their rotational axes.

Question 2

What is the mass of the black hole believed to be at the center of the Milky Way? How do we know?
 
  What will be an ideal response?

Question 3

Fusion in giant stars takes us all the way to iron before a Type II supernova occurs. Why did it stop with helium in the far more energetic Big Bang?
 
  What will be an ideal response?
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#1
6 years ago
Answer to q. 1

B

Answer to q. 2

Studies of the motions of gas and stars close to it are consistent with an attractor of 3 million solar masses residing in a tiny region inside the vast ionized clouds about 10 pc across.

Answer to q. 3

The expansion of the Big Bang cooled the temperature to below 100 million K by the time the helium abundances could have allowed carbon production to start.
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