At a resting pulse rate of 77 beats per minute, the human heart typically pumps about 65 ml of blood per beat. blood has a denstity of 1060 kg / m3. circulating all of the blood in the body through the heart takes about 1 min for a person at rest. (a) how much blood is in the body? (b) on average, what mass of blood does the heart pump with each heart beat?

(a) Blood in the body is 77*65 = 5005 ml

(b) On average, mass of blood does the heart pump with each heart beat is 68.9 g

Step-by-step explanation:

Given : At a resting pulse rate of 77 beats per minute, the human heart typically pumps about 65 mL of blood per beat. Blood has a denstity of 1060 kg / m3. Circulating all of the blood in the body through the heart takes about 1 min for a person at rest

To Find:  (a) How much blood is in the body?

(b) On average, what mass of blood does the heart pump with each heart beat?

Solution :

Since we are given that heart beats per minute =77

And Heart pumps about 65 mL of blood per beat

(a) So, blood in the body is 77*65 = 5005 ml

Since mass = volume * density

⇒ so,  mass of blood does the heart pump with each heart beat = volume * density

⇒mass =  

Thus 65 ml =  

⇒mass =  

⇒mass =  

⇒mass =  

⇒mass =  

⇒mass =  

⇒mass =  

(b) On average, mass of blood does the heart pump with each heart beat is 68.9 g

answer: 91

step-by-step explanation:

idk

step-by-step explanation: i just don't