An artificial Earth satellite is moved from a circular orbit with radius R to a circular orbit with radius 2R. During this move: the gravitational force does negative work, the kinetic energy of the satellite system increases, and the potential energy of the Earth-satellite system decreases the gravitational force does negative work, the kinetic energy of the satellite decreases, and the potential energy of the Earth-satellite system increases the gravitational force does positive work, the kinetic energy of the satellite decreases, and the potential energy of the Earth-satellite system increases the gravitational force does positive work, the kinetic energy of the satellite increases, and the potential energy of the Earth-satellite system decreases the gravitational force does positive work, the kinetic energy of the satellite increases, and the potential energy of the Earth-satellite system increases