If the distance between the Earth and Moon were half what it is now, by what factor would the force of gravity between them be c
hanged. That is, what is the ratio of the new force to the old force?
1 answer:
Answer:
4
Explanation:
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
= Mass of Earth
= Mass of Moon
r = Distance between Earth and Moon
Old gravitational force

New gravitational force

Dividing the equations

The ratio is 
The new force would be 4 times the old force
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