Aspace probe is traveling in outer space with a momentum that has a magnitude of 3.87 x 107 kg·m/s. a retrorocket is fired to slow down the probe. it applies a force to the probe that has a magnitude of 1.41 x 106 n and a direction opposite to the probe's motion. it fires for a period of 9.55 s. determine the momentum of the probe after the retrorocket ceases to fire.

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.)