Homework Help: Physics

Posted by Alex on Wednesday, June 6, 2012 at 1:24pm.

The blood flow rate through the aorta is typically 103 cm^3/s, and a typical adult has about 4.9 liters of blood.

(a) How long does it take for all your blood to pass through the aorta?
___________s

(b) If your aorta has a diameter of 2.1 cm, what is the speed of blood as it flows through the aorta?
___________cm/s

Physics - MathMate, Wednesday, June 6, 2012 at 4:08pm
(a) 4.9 l / 103 cm
=4900 ml / 103 ml
= 47.6 s

(b) cross section area
A = π2.1²/4 = 3.46 cm²
Velocity = Volume/cross section area
= 103/3.46 cm/s
= 29.7 cm/s
Physics - Alex, Wednesday, June 6, 2012 at 9:42pm
Thank you so much!
Physics :) - MathMate, Wednesday, June 6, 2012 at 10:21pm
You're welcome!

Answer this Question

Related Questions

physics - (a) Calculate the mass flow rate (in grams per second) of blood (&...
physics - (a) Calculate the mass flow rate (in grams per second) of blood (&...
physics, I'm stuck - In an aortic aneurysm, a bulge forms where the walls of...
Physics - The human heart is a mechanical pump. The aorta is a large artery that...
PHYSICS ---HELP! - A patient is to be given a blood transfusion. The blood is to...
physics - A patient is to be given a blood transfusion. The blood is to flow ...
Physics - Blood flows in an aorta of radius 4.62mm at 27.5cm/s. Calculate the ...
Physics - Suppose that there is a partial blockage of the aorta, which normally ...
Physics - 1) A small dense object is suspended from the rear view mirror in a ...
physics - speed of blood flow is 30 cm/s near the heart, but only 20 cm/s at a ...

For Further Reading

First Name:
School Subject:
Answer: