If I could snap my fingers and move Earth to an orbital distance at 9 AU, what would happen to the strength of the Sun's gravita
1 answer:
Answer:
= 1.2 10⁻²
force of attraction of the sun decreases by a factor of 1.2 10⁻² times
Explanation:
The force of gravity is given by the universal law of attraction
F = G m Ms / r²
where m is the mass of the Earth, Ms the mass of the Sun and r the distance from the Earth to the Sun
for the initial orbit
F₀ = G m Ms / R₀²
for one orbit
R = 9R₀
F =
F =
we substitute
F = F₀ / 81
= 1.2 10⁻²
therefore the force of attraction of the sun decreases by a factor of 1.2 10⁻² times
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