Age of earth

  • Thread starter asmalik12
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  • #1
asmalik12
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Hi,

Age of Earth is equal to

  1. A solar day
  2. A lunar day
  3. An astronomical day
  4. None of these

Which is the correct one and how?
 

Answers and Replies

  • #2
phinds
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Do you have any idea how old the Earth is?
 
  • #3
asmalik12
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According to my book:

1.4 x 107 s
 
  • #4
phinds
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and do you have any idea how long each of those other things is?
 
  • #5
asmalik12
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It's approximate value. nope, I don't have any idea about this.

That's why I asked it here !
 
  • #6
phinds
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perhaps you would find it informative to look them up.
 
  • #7
SammyS
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According to my book:

1.4 x 107 s
I suggest getting a different book.

The age of the Earth is on the order of 4.5✕109 years .
 

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