Question

at a resting pulse rate of 79 beats per minute, the human heart typically pumps about 71 ml of blood per beat. blood has a density of 1060 kg/m3. circulating all of the blood in the body through the heart takes about 1 min for a person at rest.

Answer 1

Step-by-step explanation:

It pumps about 79*71 = 5629 ml per minute.

To convert ml to m3, we can use the conversion factor 1 m3 = 1,000,000 ml.

So, 5629 ml = 5629/1,000,000 m3

Then to find the mass of the blood that is being pumped through the heart per minute, we can use the density of the blood which is 1060 kg/m3 and multiply it with the volume of blood (5629/1,000,000 m3) that is being pumped through the heart per minute.

mass of blood = (5629/1,000,000 m3) * 1060 kg/m3 = 5.977 kg/min

The heart pumps about 5.977 kg of blood per minute for a person at rest.