A hot drink in a room is at a temperature of 20 C What has happened to the drink after 10 minutes?

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

The ozone hole appears in antarctica during

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.)