Homework Help: physics

Posted by Ashleigh on Tuesday, October 26, 2010 at 10:32am.

Blood of density 1010kg/m^3 that is to be administered to a patient is raised about 1.51 m higher than the level of the patient's arm. How much greater is the pressure of the blood than it would be if the container were at the same level of the arm? The acceleration of gravity is 9.8m/s^2. Answer in units of Pa.

physics - bobpursley, Tuesday, October 26, 2010 at 11:27am
In reality, the pressure loss due to the tubing is significant, but well ignore this.

weight of a column blood h height, and area A

weight=density*Volume*g=density*A*h*g
pressure=weight/area=density*g*h
physics - Ashleigh, Tuesday, October 26, 2010 at 11:44am
Much easier than I thought: Pressure = (1010 kg/m^3) x (1.51 m) x (9.8 m/s^2) = 14,945.98 Pa

Thanks!

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