Question

FULL SCREEN MESSAGE HY INSTRUCTOR PRINTER VERStON BACK NEXT Chapter 11, Problem 080 GO A blood transfusion is being set up in an emergency room for an accident victim. Biood has a density of 1060 ka/m and a viscosity of 4.0 x 10 Pa-s. The needle being used has a length of 3.0 cm and an inner radius of 0.25 mm. The doctor wishes to use a velume flew rate through the needle of 5.8 x 10 m/s. What is the distance h above the victim's arm where the level of the blood in the transfusion bottle should be located? As an approximation, assume that the level of the blood in the transfusion bottle and the point where the needle enterrs the vein in the arm have the same pressure of one atmosphere. (In reality, the pressure in the vein is slightly above atmospheric pressure.) h- the tolerance is +/-2% co TUTORIAL Question Attempts: Unlimited SAVE FOR LATER SUBHIT ANSWER powered by MapleNet

Answer 1

By poiseville's formula Q = 5, 2012 where AP : pressure difference = R: radius of needle n: viscosity of blood l length of needle 4 p density of blood. pgh h= 80 mL xt pg R" 8 X 68 X1o® x 4.0X163 x 0.03 (314059) (1060) (0.25X163)"(9:8) = 5.568 x 10-11 127.4799 X 1672 m. = 19.900 m F 0.43617 55.68 127.4799 0.43677 m. = 43.68 em