What is the force of gravity between the Sun and the Earth, if the mass of the Earth is 6 • 10 (to the 24th power) kg, the mass of the Sun is 2 • 10 (to the 30th power) kg, the distance from the Earth to the Sun is 1.5 • 10 (to the 8th power) km ? Neglect the radii of the Earth and the Sun.
F = G * mc * mс: r˄2 = 6.67 * 10˄ -11 * * 6 * 10˄24 * 2 * 10˄30: (1.5 * 10˄11) ˄2 = 80.04 * 10 * 43: 2.25: 10˄22 = 35.57 * 10˄21 N
Answer: 35.57 * 10˄21 N
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