The fountain at the Detroit Metropolitan Airport (DTW) uses an opening 449cm in diameter to form a thin layer of water flowing over the face of the fountain. If the water has a density of 1.02g/cm3 and a viscosity of 0.0099g/cms, what is the thickness of the water film (df) (in cm ) if the flow rate of water coming out of the top of the fountain is 250cm3/s ? Although the geometry is cylindrical, for simplicity, assume the film is thin enough that you can use rectangular coordinates around the circumference of the fountain. Also, assume the sidewalls are flat and vertical