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 :
5.22 x 10³ kg m⁻³
5.52 x 10³ kg m⁻³
5.28 x 10³ kg m⁻³
5.24 x 10³ kg m⁻³
Answer :
5.52 x 10³ kg m⁻³
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