2. Consider one-dimensional flow through a porous medium along the x-axis (0 ), where h = thickness; and K = hydraulic conductivity (constant). The pressures are: (0) = 0, and () = . Assume that the rate of volumetric flow in the source is non-zero ( 0), but the rate of volumetric flow in the sink is zero ( = 0). Derive the pressure profile and the velocity profile. Note that 2 =