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Science-Related Homework Help Astronomy Topic started by: tifoanug on Mar 19, 2018



Title: Venus' lack of magnetic field means that:
Post by: tifoanug on Mar 19, 2018
Venus' lack of magnetic field means that:
 
  A) there is no lightning on Venus.
  B) the surface of Venus has no protection from the Sun's radiation.
  C) it doesn't have a liquid metallic core.
  D) Venus' upper atmosphere is permanently ionized.
  E) there are constant aurorae everywhere on Venus.

Question 2

Which of the following best describes the internal layering of Jupiter, from the center outward?
 
  A) core of rock, metal, and hydrogen compounds; thick layer of metallic hydrogen; layer of liquid hydrogen; layer of gaseous hydrogen; cloud layer
  B) core of rock and metal; mantle of lower density rock; upper layer of gaseous hydrogen; cloud layer
  C) solid rock core; layer of solid metallic hydrogen; layer of pure liquid hydrogen; cloud layer
  D) liquid core of hydrogen compounds; liquid hydrogen layer; metallic hydrogen layer; gaseous hydrogen layer; cloud layer

Question 3

In our vicinity, the galactic disk is about 100 times wider than it is thick.
 
  Indicate whether the statement is true or false

Question 4

We look toward a cool star. How can we determine that there is an interstellar dust cloud between us and the star?
 
  What will be an ideal response?

Question 5

Discuss the role that methane plays in the appearances of Neptune and Uranus.
 
  What will be an ideal response?

Question 6

The total amount of power (in watts, for example) that a star radiates into space is called its
 
  A) apparent brightness.
  B) absolute magnitude.
  C) luminosity.
  D) flux.


Title: Venus' lack of magnetic field means that:
Post by: miacampbell on Mar 19, 2018
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Title: Venus' lack of magnetic field means that:
Post by: tifoanug on Mar 19, 2018
This helps so much, thank you for responding so quickly...


Title: Venus' lack of magnetic field means that:
Post by: miacampbell on Mar 19, 2018
No worries, I was online and bored :lol: