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Analyzing Gravitational Pull

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scientist wants to increase the pull of gravity between the two planets.

Which proposals would the scientist make to accomplish this goal? Check all that apply.

decreasing the distance between Hox and Blox
increasing the mass of Hox
increasing the distance between Hox and Blox
decreasing the mass of Blox
increasing the mass of Hox and Blox
decreasing the mass of Hox and Blox

1 answer

To increase the gravitational pull between two objects, the scientist can consider the following proposals based on Newton's Law of Universal Gravitation, which states that the gravitational force between two masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Given this, the proposals that would increase the gravitational pull between the planets Hox and Blox are:

  1. Decreasing the distance between Hox and Blox - This would increase the gravitational force, as gravity pulls stronger when objects are closer together.

  2. Increasing the mass of Hox - Increasing the mass of one object increases the gravitational force between the two objects.

  3. Increasing the mass of Hox and Blox - Increasing the mass of both objects also increases the gravitational force between them.

Therefore, the applicable proposals are:

  • Decreasing the distance between Hox and Blox
  • Increasing the mass of Hox
  • Increasing the mass of Hox and Blox

The other options, such as increasing the distance, or decreasing the mass of either planet, would reduce the gravitational pull.