Suppose you have two chains available to suspend an object in the air. let’s also say that you can arrange the suspension however you like. which arrangement would cause the least amount of tension on the chain or chains? a. image 3 b. image 4 c. image 2 d. image 1

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.)