Welcome to the PF.Albert einstine said:
If the mass of the Earth were doubled, the gravitational force would also double. This is because the force of gravity is directly proportional to the mass of the objects involved. Therefore, a doubling of the Earth's mass would result in a doubling of the gravitational force between the Earth and any other object.
Yes, the Earth's orbit would be affected if its mass were doubled. According to Newton's law of gravitation, the force of gravity between two objects is also inversely proportional to the square of the distance between them. This means that if the mass of the Earth were doubled, the gravitational force between the Earth and the Sun would also double, resulting in a change in the Earth's orbit.
If the mass of the Earth were doubled, the weight of objects on its surface would also double. This is because weight is a measure of the gravitational force exerted on an object, and as mentioned before, the force of gravity is directly proportional to the mass of the objects involved.
Yes, the Earth's atmospheric pressure would increase if its mass were doubled. This is because the Earth's atmosphere is held in place by the gravitational force of the Earth. With a doubled mass, the Earth's gravitational force would also increase, resulting in a higher atmospheric pressure.
If the mass of the Earth were doubled, the escape velocity would also increase. Escape velocity is the minimum speed an object needs to have in order to escape the gravitational pull of a larger body. With a doubled mass, the Earth's gravitational force would also double, requiring a higher escape velocity for objects to leave its surface.