a 51 kg person is being dragged in their sleeping bag to the lake by a 420 N force at an angle of 30 degrees. If the person accelerates at a rate of 0.79m/s squared, how much resistive force (force of friction) is acting on them?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Explain what happens at the saturation point when adding salt to water at room temperature.

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.)