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Mathematics, 06.12.2019 19:31 pancho99

The aorta pumps blood away from the heart at about 40 cm/s and has a radius of about 1.0 cm. it then branches into many capillaries, each with a radius of about 5×10−4 cm carrying blood at a speed of 0.10 cm/s. how many capillaries are there?
a. 1.6×109
b. 16
c. 8.0×105
d. 1.6×105

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