To increase the gravitational force between two objects, you should:
- Decrease the distance between the two objects.
According to Newton's law of universal gravitation, the gravitational force \( F \) between two masses \( m_1 \) and \( m_2 \) is given by the formula:
\[ F = G \frac{m_1 \cdot m_2}{r^2} \]
where \( G \) is the gravitational constant and \( r \) is the distance between the centers of the two masses. From this equation, you can see that as the distance \( r \) decreases, the gravitational force \( F \) increases.
The other options listed (decreasing the mass of either or both objects, or increasing the distance between them) would decrease the gravitational force.
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