~me~

a magnet has a north pole and a south pole. if you cut a magnet in half, what would you would have? a) two magnets, both with a north and south pole. b) two magnets but one would be stronger than the other. c) one magnet with a north pole and one with a south pole. d) no magnets since the original magnet would lose its magnetism

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.)