calculate the mass flow rate in grams per secomd of blood p is 1.0 g/cm^3 in an aorta branches to form a large number of cpullaries with a combined cross-sectional area of 3.0 times 10^3 cm^2. what is the flow speed in the capillaries?
2006-12-12 16:41:40 · 1 answers · asked by Kitana 2 in Science & Mathematics ➔ Physics
It deals with differential pressure relative the cross sectional areas. The fact that they gave you the ratio of the areas is awful nice. The flow rate is a combination of density and velocity. For a given velocity you cover a certain distance which represents a certain volume when combined with the cross sectional area, which can then be defined as volume times density per second, or, a mass flow rate. Because the capillaries are three times greater in area, you can expect the velocity to be less, but the overall mass flow rate will remain constant (ideally). Punctuation and sentence structure would help this question out some, in case you were curious. This answer is my best guess based on what I think you are asking.
2006-12-12 17:06:43 · answer #1 · answered by DJL2 3 · 1⤊ 0⤋