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Author Question: Which of the following has not been detected around other stars in the Galaxy? A) a collapsing ... (Read 38 times)

washai

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on: Jul 27, 2018
Which of the following has not been detected around other stars in the Galaxy?
 
  A) a collapsing nebula of gas
  B) flattened, spinning disks
  C) jovian planets
  D) asteroids
  E) strong stellar winds

Question 2

Why is the Kuiper belt flat but the Oort cloud spherical?
 
  What will be an ideal response?


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jessofishing

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

D

Answer to Question 2

The difference is that the comets in the Kuiper belt have not been scattered out by gravitational interactions with giant planets. Kuiper-belt comets formed beyond the orbit of Neptune in the flattened solar nebula and their orbits have not been greatly changed. Oort-cloud comets, however, formed within the orbit of the jovian planets and have been scattered out (or impacted other bodies in the solar system). The scattering was random so the orbits are in every direction and inclination, resulting in a spherical Oort cloud.


washai

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Reply 2 on: Jul 27, 2018
Wow, this really help

ecabral0

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Reply 3 on: Yesterday
Gracias!

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