Two stars of different masses exert a gravitational force on each other. – Explain how the mass of each of the stars is mathematically related to the gravitational force between them.
– Explain why the effect on the gravitational attraction of one star doubling its mass is the same as for the other star doubling its mass, even though the net increase in mass is different.
– Explain how doubling the distance between the stars affects the gravitational force between them differently than doubling the masses of both stars.
The distance between the two stars doubles: The mass of one star increases to 200% of its original value, and the mass of the second star decreases to 50% of its original value.

– How is the gravitational attraction between the two stars affected by these changes?