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Question

The mass and radius of the earth are 5.975x 10²⁴ kg and 6.37x 10⁶ m respectively. Calculate the average earth's density to correct significant figures. Take π=3.142.

Options :

  1. 5.22 x 10³ kg m⁻³

  2. 5.52 x 10³ kg m⁻³

  3. 5.28 x 10³ kg m⁻³

  4. 5.24 x 10³ kg m⁻³

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Answer :

5.52 x 10³ kg m⁻³

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