The gravitational force between 2 objects (mass 1 = 10 kg, mass 2 = 6 kg) is measured when the objects are 10 centimeters apart. If the 10 kg mass is replaced with a 20 kg mass and the 6 kg mass is replaced with a 12 kg mass, how does the new gravitational force compare to the first one that was measured?

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)