A ?siphon (?Fig. P12.88?) is a convenient device for removing liquids from containers. To establish the flow, the tube must be initially filled with fluid. Let the fluid have density ?, and let the atmospheric pressure be patm. Assume that the cross-sectional area of the tube is the same at all points along it. (a) If the lower end of the siphon is at a distance h below the surface of the liquid in the container, what is the speed of the fluid as it flows out the lower end of the siphon? (Assume that the container has a very large diameter, and ignore any effects of viscosity.) (b) A curious feature of a siphon is that the fluid initially flows “uphill.” What is the greatest height H that the high point of the tube can have if flow is still to occur?
[Bios 1600] [Chapter 49] [Salt & Water Balance] [Homeostasis in internal fluid ] ● Maintenance of normal body water levels is Important: - Water is a major portion of an animal’s body mass - Solvent that permits dissolved solutes to participate in chemical reactions - Transport vehicle that brings gases and nutrients to cells and removes wastes ● Maintaining normal salt (ion) levels is also important: - Changes in concentrations of ions can disrupt proper cellular function ● e.g., may alter membrane potential - Ions participate in various biological activities ● Serve as cofactors for enzyme activation ● Participate in bone formation ● Form part of ECM ● Activate cellul