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Calculate, using Newton's law of gravity, the size of the force of attraction between the Earth and a mass of 5.0kg on the Earth. Data: Distance to the center of Earth from thesurface = 6370 km. Mass of Earth = 5.98*10²⁴ kg. Gravitational constant (G = 6.67 times 10^-11 Nm²/kg²).

Calculate, using Newton's law of gravity, thesize of the force of attraction between the moon and a mass of 5.0kg on the earth surface nearest the moon. Data: Distance to themoon from surface of the earth = 376,000 km. Mass of moon = 7.36times 10²² kg.

Calculate, using Newton's law of gravity, theratio of the strength of the force of attraction of a mass of 5.0kg on the earth's surface by the sun to that by the moon. Additional Data: Mass of sun =1.99 times 10³⁰ kg. Distance from the sun to the surface of Earth = 1.50 times10⁸ km.

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