Comment on these data vis-a-vis laminar flow, prob. p3.3. estimate, as best you can. the total volume flow q through the tube, in m3/s. when a gravity-driven liquid jet issues from a slot in a tank, as in fig. p3.6, an approximation for the exit velocity distribution is u , where h is the depth of the jet centerline. near the slot, the jet is horizontal, two-dimensional, and of thickness 2l, as shown. find a general expression for the total volume flow q issuing from the slot; then take the limit of your result if l h. a spherical tank, of diameter 35 cm. is leaking air through a 5-mm-diameter hole in its side. the air exits the hole at 360 m/s and a density of 2.5 kg/m3. assuming uniform mixing, (a) find a formula for the rate of change of average density in the tank and (b) calculate a numerical value for (dp/dt) in the lank for the given data. three pipes steadily deliver water at 20 degree c to a large exit pipe in fig. p3.8. the velocity v2 = 5 m/s. and the exit flow rate q4 = 120 m3/h. find (a) v1, (b) v3, and (c) v4 if it is known that increasing q3 by 20 percent would increase q4, by 10 percent.