What is the density of water at 4oC and one atmospheric pressure?

What is the greatest average speed of blood flow at 37°C in an artery of radius 2.50 mm if the flow is to remain laminar? Take the density of blood to be 1025 kg/m3, and the viscosity to be 2.084 × 10-3 Pa.s. What is the corresponding flow rate?

What is the pressure 24.0 m below the surface of a lake? The pressure at the surface is 12.6 m H2O and the density of water is 1000 kg/m^3. Use the conversion factor 101 325 kPa = 10.33 m H2O.

By inhaling, a person can create a relative pressure of -60 mm Hg. How high can this person push water up through a straw?

Air and oil with a temperature of 25 °C are flowing through a horizontal pipe with an inner diameter 1.5 in at a volumetric flow rate of Qc = 31 L/min and QL respectively. The pressure inside the pipe is kept at 44.1 psia. According to the Baker map, what = 0.34 L/min, is the flow pattern of this flow? Here, the density and viscosity of oil are p, = 860 kg/m° and 1.72 x 102 Pa - s, and the surface tension is o = 0.030 N/m.

Suppose you measure a standing person’s blood pressure by placing the cuff on his leg 0.525 m below the heart. For this problem, assume that there is no loss of pressure due to resistance in the circulatory system (a reasonable assumption, since major arteries are large). The density of blood is 1.05×103 kg/m3 a. Calculate the systolic pressure you would observe, in units of mm Hgmm Hg, if the pressure at the heart was 120 over 80 mm Hg. Note that the top (and greater) number is the systolic pressure. b. Calculate the diastolic pressure you would observe, in units of mm Hgmm Hg, if the pressure at the heart was 120 over 80 mm Hg. Note that the bottom (smaller) number is the diastolic pressure.

At 20°C, the viscosity of water is 1.0x10-3 Pa-s and the viscosity of molasses is 51 Pa-s. Consider two tubes of the same length L, with fixed pressure difference Ap across each pipe. If water flows through Pipe 1 and molasses flows through Pipe 2, and both have the same flow rate Q, what is the ratio of the radius of Pipe 2 to Pipe 1?

An airplane passenger has 100 cm3 of air in his stomach just before the plane takes off from a sea-level airport. What volume will the air have at cruising altitude if cabin pressure drops to 7.50 X 104 N/m2?

The wing of an airplane has an average cross-sectional area of 13 m3 and experiences a lift force of 89,000 N. What is the average difference in the air pressure  between the top and bottom of the wing ?

A person’s blood pressure is read as: 130/85. Calculate the patient’s pulse pressure and mean arteria lpressure. Determine whether each  pressure is low, normal, or high.