Which of the following would increase the gravitational force of attraction between two objects? A.-Doubling the mass of both objects, only
B.-Doubling the mass of both objects and doubling the distance between the objects
C.-Doubling the mass of one object and doubling the distance between the objects
D.-Doubling the distance between the objects, only

The gravitational force of attraction is increased by doubling the mass of both objects.

According Newton's law of Universal gravitation force, two objects in the universe attracts each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of distance between them.

where;

Thus, we can conclude that by doubling the mass of both objects or reducing the distance between them, the gravitational force of attraction increases.

Learn more here:link

Doubling the mass of both objects

Explanation:

If you double the mass of both objects, the gravitational force will quadruple, if you move the objects away from each other, the gravitational force will decrease

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

electrical power