9.20 Compare flow rates through 40-mm-diameter openings under 1.50-m static heads if the openings have been constructed as sharp-edged, rounded, short-tube, or Borda orifices. Ancient Rome's famous water system used sharp-edged orifices to meter water to Roman citizens. The clever citizens found that they could obtain 30 percent more water by inserting a short tube into the orifice and thus significant water revenues. chat out of Pen M Landsbank a la A #pragma VENTI PERAN SEMPET HA HARTA vidamen $12 BERGEN D MELISS nede Caesar KAMA KARARAAN SAARET FIL S Kaameraga Nationssys www.ba #istamistamam