How much work is required to lift a 1400-kg satellite to an altitude of 2 x 10⁶ m above the surface of the earth? the gravitational force is F = GMm/r², where M is the mass of the earth, m is the mass of the satellite, and r is the distance between the satellite and the earth's center. the radius of the earth is 6.4 x 10⁶ m, its mass is 6 x 10²⁴ kg, and in these units the gravitational constant, g, is 6.67 x 10⁻¹¹.
Work = ______
