Estimate the mass of the earth

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Reference no: EM131382820

The radius of the Moon's approximately circular orbit is 384,000 km and its period is 27.3 days. Estimate the mass of the Earth.

[G = 6.67 × 10^-11 N m² kg^-2.]

The actual mass is 5.97 × 10²⁴ kg. What is the main reason for the error in your estimate?

An artificial satellite is to be placed in a circular orbit around the Earth so as to be 'geostationary'. What must the radius of its orbit be?

[The period of the Earth's rotation is 23 h 56 m, not 24 h. Why?]

Reference no: EM131382820

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