Aflare is launched from a boat. the height, , in meters, of the flare above the water is approximately modelled by the function, where is the number of seconds after the flare is launched. how many seconds will it take for the flare to return to the water?

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

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

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.