How Many Capillaries? The aorta has an inside diameter of approximately 2.1 cm, compared to that of a capillary, which is about 1.0 x 10 5 m (10 µm). In addition, the average speed of flow is approximately 1.0 m/s in the aorta and 0.3 mm/s in a capillary. Part A Assuming that all the blood that flows through the aorta also flows through the capillaries, how many capillaries does the circulatory system have? Express your answer using two significant figures.

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How Many Capillaries? The aorta has an inside diameter of
approximately 2.1 cm, compared to that of a capillary, which
is about 1.0 x 10
speed of flow is approximately 1.0 m/s in the aorta and
0.3 mm/s in a capillary.
m (10 um). In addition, the average
Part A
Assuming that all the blood that flows through the aorta also flows through the capillaries, how many capillaries does the circulatory system have?
Express your answer using two significant figures.
Π ΑΣφ
?
n =
Transcribed Image Text:How Many Capillaries? The aorta has an inside diameter of approximately 2.1 cm, compared to that of a capillary, which is about 1.0 x 10 speed of flow is approximately 1.0 m/s in the aorta and 0.3 mm/s in a capillary. m (10 um). In addition, the average Part A Assuming that all the blood that flows through the aorta also flows through the capillaries, how many capillaries does the circulatory system have? Express your answer using two significant figures. Π ΑΣφ ? n =
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