Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 14, Problem 30SP
In a blood transfusion, blood flows from a bottle at atmospheric pressure into a patient’s vein in which the pressure is 20 mmHg higher than atmospheric. The bottle is 95 cm higher than the vein, and the needle into the vein has a length of 3.0 cm and an i.d. of 0.45 mm. How much blood flows into the vein each minute? For blood,
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Systemic blood pressure is expressed as the ratio of the systolic pressure (when the heart first ejects blood into the arteries{max}) to the diastolic pressure (when the heart is relaxed{min}). Systemic pressure = Systolic pressure / diastolic pressure. Both pressures are measured at the level of the heart and are expressed in millimeters of mercury although the units are not written. Normal systemic blood pressure is 120/80. What are the maximum and minimum forces (in Newtons) that the blood exerts against each square centimeter of the heart for a person with high blood pressure, 145 / 85 ?
Note: this is a conversion question...follow the units.
Answer to 2 sig figs. (1.013 x 10^5 N/m^2 = 760 mmHg =1 atm) (1m = 100 cm)
maximum force = {Systolic}
minimum force = {Diastolic
Systemic blood pressure is expressed as the ratio of the systolic pressure (when the heart first ejects blood into the arteries{max}) to the diastolic pressure (when the heart is relaxed{min}). Systemic pressure = Systolic pressure / diastolic pressure. Both pressures are measured at the level of the heart and are expressed in millimeters of mercury although the units are not written. Normal systemic blood pressure is 120/80. What are the maximum and minimum forces (in Newtons) that the blood exerts against each square centimeter of the heart for a person with high blood pressure, 145 / 85 ?
Note: this is a conversion question...follow the units.
Answer to 2 sig figs. (1.013 x 10^5 N/m^2 = 760 mmHg =1 atm) (1m = 100 cm)
blood flows through the aorta at an average speed of v=18 cm/s. The aorta is roughly cylindrical with a radius r=18.0 mm. The volume rate of blood flow through the aorta is 3.14r^2v. Calculate the volume rate of blood flow through the aorta in L.min.
Chapter 14 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 14 - 18. Oil flows through a 4.0-cm-i.d. (i.e., inner...Ch. 14 - Prob. 19SPCh. 14 - 20. The speed of glycerin flowing in a 5.0-cm-i.d....Ch. 14 - 21. Gasoline flows through a pipe whose...Ch. 14 - 22. Water is delivered at an average speed of 4.0...Ch. 14 - 23. A long tube delivers 10.0 liters of alcohol in...Ch. 14 - 24. Suppose a pipe having an opening of area 4.00...Ch. 14 - 25. Wine is flowing at an average speed of 1.20...Ch. 14 - 26. How long will it take for 500 mL of water to...Ch. 14 - 27. A molten plastic flows out of a tube that is...
Ch. 14 - 28. In a horizontal pipe system, a pipe (i.d. 4.0...Ch. 14 - 29. A hypodermic needle of length 3.0 cm and i.d....Ch. 14 - 14.30 [II] In a blood transfusion, blood flows...Ch. 14 - 14.31 [I] How much work does the piston in a...Ch. 14 - 14.32 [II] Use Bernoulli’s Equation to derive...Ch. 14 - 14.33 [II] A large tank of nonviscous liquid,...Ch. 14 - 14.34 [II] Find the flow in liters/s of a...Ch. 14 - 14.35 [II] Calculate the theoretical velocity of...Ch. 14 - 14.36 [II] What horsepower is required to force...Ch. 14 - 14.37 [II] A pump lifts water at the rate of 9.0...Ch. 14 - 14.38 [II] Water flows steadily through a...Ch. 14 - 14.39 [II] A pipe of varying inner diameter...Ch. 14 - 14.40 [II] Fuel oil of density flows through a...Ch. 14 - 14.41 [II] Find the maximum amount of water that...Ch. 14 - Prob. 42SP
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