The mass of a subway car and passengers is 31,600 kg. If its acceleration as it leaves a station is 0.8 m/s2, what is the net force (in N) acting on it? (Enter the magnitude.)

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.)

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic