What is the largest average velocity of blood flow

Asked by admin @ 20/08/2021 in Physics viewed by 301 People

(a) What is the largest average velocity of blood flow in an artery of radius 2 × 10–3 m if the flow must remain laminar?

(b) What is the corresponding flow rate? (Take viscosity of blood to be 2.084 × 10–3 Pa s).

Answered by admin @ 20/08/2021

Here,
Radius of artery (r) = 2 × 10^-3 m
diameter of artery ( D) = 2 × r
= 2 × 2 × 10^-3 m
density of whole blood ( d) = 1.06 × 10³ kg/m³
coefficient of viscosity of blood (n) = 2.084 × 10³ Pa-s

For laminar flow maximum value of Reynolds number ( Kr) = 2000

(a) largest average velocity ( critical velocity) = K × n/d.D
= 2000 × 2.084 × 10³/1.06 × 4 × 10^-3
= 0.983 m/s ≈ 0.98 m/s

(b) flow rate of blood = volume of blood flowing per second
= Area × largest average velocity
= πr² × V
= 3.14 × (2 × 10^-3)² × 0.98
= 1.24 × 10^-5 m³/s

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ 13/01/2021 in Physics viewed by 1213 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1157 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1106 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1103 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1088 persons

What is the largest average velocity of blood flow

Similar Questions

What stops blood from flowing backwards through the heart

The local matching of blood flow with ventilation is ________

Through which path does blood flow through the circulatory system

Trace the flow of blood through the heart and body

Which of the following affects blood flow through the body

How is blood flow related to lung function during exercise

For determining the velocity of flow of underground water

What is the difference between velocity and average velocity

Which structure of heart control the flow of blood

Which blood vessel has the largest total cross sectional area

What is the average velocity between 12.00 and 15.00 seconds

What is the driving force for blood flow

The deep ocean currents flow with high velocity

Blood flowing through umbilical cord of mammalian embryo is

If the average velocity of n2 molecule is 0.3

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Hc verma physics class 9 solutions of describing motion

How to leave nightmare land answer key

Base area and stability of some objects with different shapes

Which of the following statements about safe lifting are correct

Porous water-absorbing mass of fibers

Absorption of water by filter paper is due to

A composite wire of uniform diameter 3mm

At a distance l 400m from the traffic light

A rocket of mass m is launched straight up with thrust f⃗ thrust.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Mind map for light reflection and refraction class 10

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

A thief runs at a speed of 10m s

A 5.8 x 10 4 watt elevator motor can lift