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Describe doping test procedure?

Posted by Manpreet Singh 5 years, 10 months ago

CBSE > Class 11 > Physical Education

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What is the difference between string and list

Posted by Roshan K 5 years, 10 months ago

CBSE > Class 11 > Computer Science

1 answers

Nivethitha Gopinathan 5 years, 9 months ago

Strings are immutable whereas lists are mutable data type

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name all types of joints in human body

Posted by Vansh Prajapati 5 years, 10 months ago

CBSE > Class 11 > Physical Education

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Explain the term doping in brief.

Posted by Vansh Prajapati 5 years, 10 months ago

CBSE > Class 11 > Physical Education

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Define body mass index.

Posted by Vansh Prajapati 5 years, 10 months ago

CBSE > Class 11 > Physical Education

1 answers

Ritesh Bishal 5 years, 9 months ago

BMI = wieght ÷ height×height

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Write the features of kabaddi,.

Posted by Nisha Yadav 5 years, 10 months ago

CBSE > Class 11 > Physical Education

1 answers

Vansh Prajapati 5 years, 10 months ago

Hope it is helpful

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why is the Constitution necessary for monarchy, elite system, democracy or any system of governance

Posted by Abhishek Thakur 5 years, 10 months ago

CBSE > Class 11 > Political Science

1 answers

Vishu Thind 5 years, 10 months ago

It brings certainty.. It can't be partial.. It makes the people aware about every aspect of state.. It prevents communalism.. It ensure rights...

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Sample paper solution

Posted by Dinesh Bainsla 5 years, 10 months ago

CBSE > Class 11 > Physics

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Discuss the john rawls principle of justic?

Posted by Akash Sharma 5 years, 10 months ago

CBSE > Class 11 > Political Science

2 answers

Sanjana . 5 years, 10 months ago

A Theory of Justice is a 1971 work of political philosophy and ethics by the philosopher John Rawls, in which the author addresses the problem of distributive justice (the socially just distribution of goods in a society). The theory uses an updated form of Kantian philosophy and a variant form of conventional social contract theory. Rawls's theory of justice is fully a political theory of justice as opposed to other forms of justice discussed in other disciplines and contexts. The resultant theory was challenged and refined several times in the decades following its original publication in 1971. A significant reappraisal was published in the 1985 essay "Justice as Fairness", and a subsequent book under the same title, within which Rawls further developed his two central principles for his discussion of justice. Together, they dictate that society should be structured so that the greatest possible amount of liberty is given to its members, limited only by the notion that the liberty of any one member shall not infringe upon that of any other member. Secondly, inequalities – either social or economic – are only to be allowed if the worst off will be better off than they might be under an equal distribution. Finally, if there is such a beneficial inequality, this inequality should not make it harder for those without resources to occupy positions of power – for instance, public office. First published in 1971, A Theory of Justice was revised in 1975, while translated editions were being released in the 1990s it was further revised in 1999. In 2001, Rawls published a follow-up study titled Justice as Fairness: A Restatement.

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Saif Vlogestan 5 years, 10 months ago

The theory of john Rawls , he's a political thinker he said if we put all people behind the 'veil of ignorance' where they don't know their status like wealth, power, talent etc. And after time we put them back they will choice the privilege which will effect them more

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How did dr andrew gave birth to a baby

Posted by Sakshi Rajput 5 years, 10 months ago

CBSE > Class 11 > English Core

1 answers

Vansh Bansal 5 years, 10 months ago

First of all he tried very hard.

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What do you mean by sp3 halides

Posted by Abhay Gupta 5 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Vansh Prajapati 5 years, 10 months ago

The term “sp3 hybridization” refers to the mixing character of one 2s-orbital and three 2p-orbitals to create four hybrid orbitals with similar characteristics. In order for an atom to be sp3 hybridized, it must have an s orbital and three p orbitals.

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Function of bones

Posted by Vidhi Mishra 5 years, 10 months ago

CBSE > Class 11 > Physical Education

2 answers

Vansh Prajapati 5 years, 10 months ago

Hope it is helpful

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Vansh Prajapati 5 years, 10 months ago

The major functions of the bones are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and hematopoiesis. Together, the muscular system and skeletal system are known as the musculoskeletal system.

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If a body have mass M and Momentum P then the change in momentum hundred percent, what is the change in its kinetic energy?

Posted by Amit Kumar 5 years, 10 months ago

CBSE > Class 11 > Physics

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Shrawan and wachan

Posted by Ankur Rai 5 years, 10 months ago

CBSE > Class 11 > हिंदी कोर

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Activity on plane a budget on any celebration

Posted by Shubham Kumar 5 years, 10 months ago

CBSE > Class 11 > Home Science

1 answers

Jyoti Kumari 5 years, 10 months ago

Hii sir

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A drop of oil placed on the surface of water spreads out but a drop of water placed on oil contracts. Why?

Posted by Simran Birdi 5 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Kartik Singh 5 years, 10 months ago

It is because of the COHESIVE force between the particles of oil,which attracts its own molecules........whereas in case of water COHESIVE force is less and the force which is dominant here is called ADHESIVE force in this type of force.... the force of attraction between the molecules of different substances(water and surface) is more...

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Derive laplace formula for the speed of sound in gas

Posted by Hafis Mohammed 5 years, 10 months ago

CBSE > Class 11 > Physics

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State and prove bernouli's theorem

Posted by Hafis Mohammed 5 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 5 years, 10 months ago

Bernoulli’s Principle

For a streamline fluid flow, the sum of the pressure (P), the kinetic energy per unit volume (ρv²/2) and the potential energy per unit volume (ρgh) remain constant.
Mathematically:- P+ ρv²/2 + ρgh = constant
- where P= pressure ,
- E./ Volume=1/2mv²/V = 1/2v²(m/V) = 1/2ρv²
- E./Volume = mgh/V = (m/V)gh = ρgh

Derive: Bernoulli’s equation

Assumptions:

Fluid flow through a pipe of varying width.
Pipe is located at changing heights.
Fluid is incompressible.
Flow is laminar.
No energy is lost due to friction:applicable only to non-viscous fluids.

Mathematically: -
Consider the fluid initially lying between B and D. In an infinitesimal timeinterval Δt, this fluid would have moved.
- Suppose v₁= speed at B and v₂= speedat D, initial distance moved by fluid from to C=v₁Δt.
- In the same interval Δtfluid distance moved by D to E = v₂Δt.
- P₁= Pressureat A_1, P₂=Pressure at A₂.
- Work done on the fluid atleft end (BC) W₁ = P₁A₁(v₁Δt).
- Work done by the fluid at the other end (DE)W₂ = P₂A₂(v₂Δt)
Net work done on the fluid is W₁ – W₂= (P₁A₁v₁Δt− P₂A₂v₂Δt)
By the Equation of continuity Av=constant.
- P₁A₁v₁Δt - P₂A₂v₂Δt where A₁v₁Δt =P₁ΔV and A₂v₂Δt = P₂ΔV.
Therefore Work done = (P₁− P₂) ΔVequation (a)
- Part of this work goes in changing Kinetic energy, ΔK = (½)m (v₂² – v₁²) and part in gravitational potential energy,ΔU =mg (h₂ − h₁).
The total change in energy ΔE= ΔK +ΔU = (½) m (v₂² – v₁²) + mg (h₂ − h₁). (i)
Density of the fluid ρ =m/V or m=ρV

Therefore in small interval of time Δt, small change in mass Δm
- Δm=ρΔV (ii)
Putting the value from equation (ii) to (i)

ΔE = 1/2 ρΔV (v₂² – v₁²) + ρgΔV (h₂ − h₁) equation(b)
By using work-energy theorem: W = ΔE
- From (a) and (b)
- (P₁-P₂) ΔV =(1/2) ρΔV (v₂² – v₁²) + ρgΔV (h₂ − h₁)
- P₁-P₂ = 1/2ρv₂² - 1/2ρv₁²+ρgh₂ -ρgh₁(By cancelling ΔV from both the sides).
After rearranging we get,P₁ + (1/2) ρ v₁² + ρg h₁ = (1/2) ρ v₂² + ρg h₂
P+(1/2) ρv²+ρg h = constant.
This is the Bernoulli’s equation.

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"She could never have been pretty but she was always beautiful "-explain....(the portrait lady)

Posted by Swati Bishal 5 years, 10 months ago

CBSE > Class 11 > English Core

5 answers

Swati Bishal 5 years, 10 months ago

Tqu Teesha....

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Teesha Rawlani 5 years, 10 months ago

The narrator meant that her grandmother was never young at before and stayed in the only way he saw but she is beautiful in her way she is

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Swati Bishal 5 years, 10 months ago

Thankyou

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Nikhil Thakur 5 years, 10 months ago

And scripture of the God

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Nikhil Thakur 5 years, 10 months ago

Because she was old woman

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What is the message of the story"the summer of the beutiful white horse."

Posted by Swati Bishal 5 years, 10 months ago

CBSE > Class 11 > English Core

2 answers

Ritesh Bishal 5 years, 10 months ago

Thanqu....

1Thank You

Kartik Singh 5 years, 10 months ago

It shows us that one can learn...if he is guilt stricken as in the story the Aram and Mourad both were guilty for the mistake they did to uncle Byro ....... U can elaborate this on ur answer sheet and really if u do this there will be no harm in it and just pay no attention to the teacher ...just do it

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which activity did you the grandmother find most relaxing when she lived in the city

Posted by Namrata Choubisa 5 years, 10 months ago

CBSE > Class 11 > English Core

3 answers

Ekta E 5 years, 10 months ago

Feeding sparrows was the activity which found grandmother relaxed when she lived in city

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Nikhil Thakur 5 years, 10 months ago

Who was Taplow

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Nidhi Sharma 5 years, 10 months ago

She found most relaxed when she fed to the Sparrows

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Summary of father to son plz

Posted by Ananya Shaw 5 years, 10 months ago

CBSE > Class 11 > English Core

5 answers

Nikhil Thakur 5 years, 10 months ago

The 'father to son' discusses the universal problem of generation gap

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Swati Bishal 5 years, 10 months ago

'Father to son' describes the troubled relationship between a father and his son.the poem talks about the generation gap between the father and the son and voices the father's pain and helplessnes in failling to understand his son

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Nikhil Thakur 5 years, 10 months ago

Who was Tut

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Nikhil Thakur 5 years, 10 months ago

I have no summary of father to son

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Nikhil Thakur 5 years, 10 months ago

Who was taplow

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The function of ink gland

Posted by Gitashree Das 5 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Asim Siddiqui 5 years, 10 months ago

With the exception of nocturnal and very deep water cephalopods, all Coleoidea (squid, octopus and cuttlefish) which dwell in light conditions have an ink sac, which can be used to expel a cloud of dark ink in order to confuse predators.

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how can find moc

Posted by Sujeet Mehta 5 years, 10 months ago

CBSE > Class 11 > अर्थशास्त्र

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√x+√x to infinity

Posted by Jatin Vashist 5 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Nidhi Sharma 5 years, 10 months ago

√x+√x to infinity =infinity√x Bcz for eg. √x+√x+√x = 3√x So √x+√x to infinity = infinity√x Is your solution

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Difference between PCT and DCT

Posted by Ankita Kumari 5 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Yogita Ingle 5 years, 10 months ago

<th>PROXIMAL CONVOLUTED TUBULE</th> <th>DISTAL CONVOLUTED TUBULE</th>

The cells present in the Proximal Convoluted Tubule (PCT) have brush border which is capable of absorption.	Distal Convoluted Tubule (DCT) is the highly coiled part found in the medulla of the kidney.
URINE
Proximal Convoluted Tubule (PCT) receives primary urine from glomerulus.	Distal Convoluted Tubule (DCT) receives urine from the glomerulus.
RESULTS IN
PCT regulates excretion of urine by absorbing excess water from primary urine.	In DCT, water and salts are secreted.
FUNCTION
A small amount of tubular secretion also takes place in the Proximal Convoluted Tubule (PCT).	The secretion of wastes of ions takes place in the Distal Convoluted Tubule (DCT).
OTHERS
The substances which are reabsorbed into peritubular network from PCT are glucose, amino acid's, vitamin-c, potassium, Calcium, sodium chloride, 75% of water, etc.	The substances like urea, uric acid, creatinine, sodium, potassium, hydrogen ions are secreted into DCT.