Intro to physics only 11.3, 7, and 10 11.3Blood has a density of 1060 kg m-3 whe

Question

Intro to physics only 11.3, 7, and 10 11.3Blood has a density of 1060 kg m-3 whereas the density of the 11.9 The systolic pressure in a major artery is measured at rospinal fluid is 1007 kg m What mass of cerebrospinal 115 mmHg. What is the net force on a 1 cm2 section of the arte fluid will have the same volume as 50.0 g of blood? rial wall if the (absolute) pressure in the tissue outside the arterial is 109 kPa? (Patm-101.3 kPa) 1.4 Given that the density of water is 1 x 103 kg m-3, how deep walll would you have to dive to experience an absolute pressure of 11.10What is the density of the unknown fluid in Figure 11.17? 2 atm? How deep would you have to dive to experience an absolute pressure of 5 atm? (Note that 1 atm- 101.3 kPa.) many assume that the unknown liquid is prevented from mixing with the water or displacing it in the event it is the more dense. pwater =1000 kg m-3.) 11.5 What would you estimate that the difference in average blood pressure between the top of 1.7 m tall person's head and the bot om of their feet is? (Pblood 1060 kg m-3) 11.6 Blood pressure is generally quoted in mmHg and is a gauge pressure. In this question we will convert this into SI units. Sup- pose that the systolic pressure of a particular patient is 120 mmHg and the diastolic pressure is 80 mmHg. Given that 760 mmHg is equivalent to 101.3 kPa, what is the systolic and diastolic blood pressure of this patient in SI units (Pa, or kPa)? 8.9 cm ? 3.5 cm 11 You wish to measure the blood pressure at the top of a pa- teht's head but the patient is unable to lie flat. You measure the pressure at the bicep (i.e. level with the heart) and find that t is 140 mmlig systolic and 80 mmHg diastolic. What would you blood water this pointis 45 cm above the measurement point? Remember this Figure 11 .17 Water and an unknown fuld are placed in an open u-tube

Explanation / Answer

11.3]

Density = mass/volume

so, volume = mass/density

here, the volume for both blood and cerebrospinal fluid is same.

=> m/d = M/D

=> 0.050/1060 = M/1007

=> M = 47.5 x 10-3 kg = 47.5 g.

This is the mass of the cerebrospinal fluid for which the volume will be same.

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