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Q: When a gravity-driven liquid jet issues from a slot in a tank, as in Fig an approximation for the exit velocity distribution is u˜ 2g (h-z), 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.="">
