If you sit outside and get a sunburn, what type of electromagnetic waves are to blame? x–rays microwaves infrared light ultraviolet light

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.)

Photons with the highest energy have the longest period

What is part of a line has one endpoint and continues in one direction?