blood flows

[shawngill]

Blood flows in an aorta of radius 10 mm at a speed of 0.30 m/s.
What is the volume flow rate: give your answer in litre/minute?

[newtron]

First, convert values so that all units match. I would use cm. Then calculate the cross-sectional area of the aorta . The velocity multiplied by the cross-sectional area gives you the volumetric flow rate. Then convert your final answer to the units requested. I'm not going to do this for you. This is a simple calculation.