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1.) Blood flows in an aorta of radius 4.25mm at 35.0cm/s. Calculate the volume flow rate.

2.) Although the cross-sectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total cross-sectional area is much larger. If all the blood from the aorta flows into the capillaries and the speed of flow through the capillaries is 0.90mm/s, calculate the total cross-sectional area of the capillaries.

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