State the law of conservation of energy. Check all that apply. Energy can assume different forms. Energy can be transferred from one object to another. If the system loses energy, the surroundings gain energy, and vice versa. In an energy exchange, energy is transferred between the system and the surroundings. The law of conservation of energy states that energy can be neither created nor destroyed. Explain its significance.

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.)