5.    A manometer, utilizing a pitot-tube probe, measures H mm of mercury. If you want to know the flow rate in the pipe that the pitot-tube is attached to, what additional information is needed? I.    The temperature of the water II.    The pressure in the pipe III.    The density of the mercury IV.    The diameter of the pipe a.    I, II, and III b.    I, II, and IV c.    II, III, IV d.    I, III, IV

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.