2. in the previous homework you considered a 100 cm long vertical column undergoing steady state saturated flow. the hydraulic heads at the top and bottom of the column were 10 cm and 0 cm, respectively, and the hydraulic conductivity was 1x10-5 cm s. consider the same column, with the same lower boundary condition. now, define a type ii boundary condition for the top of the column that would give the same distribution of pressure heads throughout the column as would result from a top boundary condition of 10 cm. describe a physical system that could be used to implement the type i upper boundary condition for this system used in the previous homework, and the type ii boundary condition used here.