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Author Question: Sequence the events in the origination of different types of meteorites. What will be an ideal ... (Read 13 times)

KimWrice

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on: Jul 27, 2018
Sequence the events in the origination of different types of meteorites.
 
  What will be an ideal response?

Question 2

Are comets common? Explain why or why not.
 
  What will be an ideal response?


TheDev123

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

Meteorites are fragments of parent bodies that were large enough to grow hot from radioactive decay or other processes. They then melted and differentiated to form iron-nickel cores, and rocky mantles and crusts. The molten iron cores were well insulated by thick, rocky mantles resulting in very slow cooling of the iron core and producing Widmansttten patterns. Collisions could break up such differentiated bodies and produce different kids of meteorites.

Answer to Question 2

Yes. Faint comets are common; several dozen are discovered each year. Truly bright comets appear about once per decade. An average person might see five or ten bright comets in a lifetime. Astronomers do not know exactly how many, but there could be one hundred billion in the Oort cloud.


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KimWrice

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


TheDev123

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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