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Ankit Singh 6 years, 11 months ago

Well explined priya ?????

Priya Dharshini ? 6 years, 11 months ago

spinning cricket ball in air does not follow a parabolic trajectory. ... This decreases the velocity of air flowing below the ball. Hence, the pressure on the upper side of the ball becomes lesser than that on the lower side. Hence curved path is followed

Amayra Singh 6 years, 11 months ago

The velocity of the air below the ball is decreased because these two motions are opposing each other. Thus, the pressure on the upper side of the ball is lesser and there is an upward force that works upon the ball. This makes the ball follow a curved path and not a parabolic trajectory.

ANSWER

Expression for traingle law of vector addition

Posted by Maunisha Mallan 6 years, 11 months ago

CBSE > Class 11 > Physics

4 answers

Maunisha Mallan 6 years, 11 months ago

thnx to all ji..for ur answers

Maunisha Mallan 6 years, 11 months ago

thnx dear

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 11 months ago

if 2 vectors can be represented both in magnitude and direction by the 2 side of ⛛ taken in the same oder, then their resultant is represented completely, both in magnitude and direction, by the 3rd side of the ⛛ taken in the opposite oder.

Mr. Rajput 6 years, 11 months ago

Statement of Triangle Law If 2 vectors acting simultaneously on a body are represented both in magnitude and direction by 2 sides of a triangle taken in an order then the resultant(both magnitude and direction) of these vectors is given by 3rd side of that triangle taken in opposite order. Derivation of the law Consider two vectors P and Q acting on a body and represented both in magnitude and direction by sides OA and AB respectively of a triangle OAB. Let θ be the angle between P and Q. Let R be the resultant of vectors P and Q. Then, according to triangle law of vector addition, side OB represents the resultant of P and Q.

ANSWER

What is the cause of excess pressure inside a soap bubble?

Posted by Divya Tripathy 6 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Mr. Rajput 6 years, 11 months ago

Beause higher pressure than the local atmosphere is required to make the bubble in the first place! This requirement comes from the need to counterbalance the surface tension

ANSWER

will someone tells me the summary of chapter the soul.of my landscape

Posted by Maunisha Mallan 6 years, 11 months ago

CBSE > Class 11 > English Elective NCERT

3 answers

Aman Kumar 6 years, 11 months ago

Welcome ji

Maunisha Mallan 6 years, 11 months ago

k ji thnqu

Aman Kumar 6 years, 11 months ago

It is given in this app, just check it out

ANSWER

Derive an expression for excessive pressure in a soap bubble

Posted by Pulkit Grover 6 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Mr. Rajput 6 years, 11 months ago

Due to excess pressure inside the liquid drop, the free surface of the drop will experience the net force in the outward direction due to which the drop expands.

ANSWER

Why cation is smaller than its parent atom??. Guys this question came in my exam and i have written the answer that -------- when atom loses electrons, its sheilding or screening effect ( electron - electron repulsion) reduces due to which the size of cation is smaller than its parent atom . Please tell me that my answer is correct or not ????

Posted by Prakhar Jadaun ? 6 years, 11 months ago

CBSE > Class 11 > Chemistry

4 answers

Priya Dharshini ? 6 years, 11 months ago

Ur answer is correct infact. Few teachers are like that only they try to cut students marks for silly reasons to show that they are strict in checking. Dont worry.... do good in next exam

Priya Dharshini ? 6 years, 11 months ago

this is because they have lesser electrons, while their nuclear charge remains the same. The remaining electrons are, therefore held more tightly by the protons in the nucleus and thus their radii.are smaller than the parent atoms andParent atom has more electrons so the effective nuclear charge on each electron is less. Now when a cation is formed electron(s) is/are lost. So the effective nuclear charge or simply put, the attraction of the nucleus towards the electrons increases. So due to greater pull, the nucleus pulls the shells towards it.. there by reducing the size.

Prakhar Jadaun ? 6 years, 11 months ago

The reasons my chemistry teacher told is that i have not written the important points ?

Christin Mathew 6 years, 11 months ago

Correct

ANSWER

find value of cos60 cos20 cos10 cos30

Posted by Anil Thakur 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Hari Shankar Kumar 6 years, 11 months ago

120

ANSWER

Law of equipartition. Of energy

Posted by Harsh Biologist 6 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 6 years, 11 months ago

The law states that: “In thermal equilibrium, the total energy of the molecule is divided equally among all Degrees of Freedom of motion”.
According to the law of equipartition of energy, for any dynamic system in thermal equilibrium, the total energy for the system is equally divided among the degree of freedom.

ANSWER

Why is CO considered poisnous ?

Posted by Priyansh Singhal 6 years, 11 months ago

CBSE > Class 11 > Chemistry

3 answers

Aman Kumar 6 years, 11 months ago

And at last person die due to suffocation............In Addition to Priya's Answer.....

Priya Dharshini ? 6 years, 11 months ago

It binds to haemoglobin to form carboxyhaemoglobin.which is 300 timrs more stable than the oxygen haemoglobin complex. The capacity of oxygen is reduced in blood. This leads to nervesness,headache,weakness,cardivascular disorder......and many more

Yogita Ingle 6 years, 11 months ago

Carbon monoxide (CO) is considered to be more toxic or hazardous than Carbon Dioxide (CO₂) due to the fact that CO reacts with the hemoglobin in our blood streams and produces a stable compound that actually prevents oxygen from entering the body. However, CO₂ is more tolerable in a human body because we are able to exhale it. And it doesn't have the same chemical properties that CO has. CO₂ doesn't react with the hemoglobin in our blood streams. To be more specific there is a reaction between CO and the hemoglobin in our body that occurs while on the other hand the CO₂ doesn't. Basically, the hemoglobin is an oxygen binding protein, and CO is more ready to share it's oxygen atom with the hemoglobin than the CO₂. read less

ANSWER

Find the equation of the circle ,the end points of whose diameter are (-3,7)and (5,1).Also find the length of intercept made by it on x axis....plz....urgent

Posted by Garima Lather 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Garima Lather 6 years, 11 months ago

Part 1 was easily solved .i have doubt about the length of intercept being asked...

Rishab Kumar 6 years, 11 months ago

Using the formula of circle..simple.

ANSWER

Write a short note on avm

Posted by Dimple Sondhi 6 years, 11 months ago

CBSE > Class 11 > Business Studies

0 answers

ANSWER

Why ice only freeze on the surface of lakes but not at bottom

Posted by Ayush Pandey 6 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Krishna Krishna Chaturvedi 6 years, 11 months ago

Because at bottom the density of water at bottom is maximum and due to anamolous behaviour of water at maximum density the temperature of water is 4 C thats why it not freezes

ANSWER

'Commission recieved' in accounting equation? ??

Posted by Nelvita Sharon 6 years, 11 months ago

CBSE > Class 11 > Accountancy

1 answers

Keshav Bindal 6 years, 11 months ago

Add in Cash and Capital

ANSWER

Lopping based question

Posted by Pankaj Rajput 6 years, 11 months ago

CBSE > Class 11 > Informatics Practices

2 answers

Rudransh Kalia 6 years, 11 months ago

Then the question will be --- int x=2,y=20; while (x<=y) { JOption Pane.ShowMessageDialog(x) x=x+3 } How many times will this loop work?

Rudransh Kalia 6 years, 11 months ago

Are u asking in java

ANSWER

Subtraction

Posted by Kamesh G 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What practical intelligence did the Peshwa ruler have and how did they use it for the benefit of country ? Chpt. - The Adventure

Posted by Sthitaprangya Pattnaik 6 years, 11 months ago

CBSE > Class 11 > English Core

3 answers

Himani ?? 6 years, 11 months ago

U can understand by watching video of this chapter ????

Aman Kumar 6 years, 11 months ago

After studing 2-3 times also, I did not get the chap.

Aman Kumar 6 years, 11 months ago

If anyone know the chapter Adventure,then plz tell me that in this chapter what is the thing to understand...??

ANSWER

Equation

Posted by Mikunj Parmar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Define capital recipt

Posted by Mirza Nayab Beg 6 years, 11 months ago

CBSE > Class 11 > Accountancy

2 answers

Aryan Gamer 6 years, 11 months ago

Capital receipts are receipts of non reccuring nature

Yogita Ingle 6 years, 11 months ago

Capital receipts are the income received by the company which is non-recurring in nature. They are part of the financing and investing activities rather than operating activities. The capital receipts either reduces an asset or increases a liability. Capital Receipts do not frequently occur, as it is non-recurring and irregular.

ANSWER

What is law of degree ?? In statistics of chapter correlation ........

Posted by Himani ?? 6 years, 11 months ago

CBSE > Class 11 > Economics

1 answers

Himani ?? 6 years, 11 months ago

????

ANSWER

What is velocity gradient

Posted by Ravi Damor 6 years, 11 months ago

CBSE > Class 11 > Physics

3 answers

Swastik Singh 6 years, 11 months ago

The rate of change of velocity with distance is called velocity gradient. Consider an orderly flow of liquid over a fixed plane consider its two layer separatef by a distance dx having velocitied v and v+dv Then Velocity gradient =[(v+dv)-v]/dx =dv/dx

Shatayu Ganvir 6 years, 11 months ago

Dv/Dz

Aditya Goswami 6 years, 11 months ago

dv/dx

4Thank You

ANSWER

Sample papers

Posted by Loveleen Kaur 6 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Ankit Singh 6 years, 11 months ago

Yes which

Ayush Sharma 6 years, 11 months ago

For which

ANSWER

Formula of median

Posted by Vikas Pal 6 years, 11 months ago

CBSE > Class 11 > Economics

1 answers

Chesta Pawan Manchanda 6 years, 11 months ago

In individual series - n+1/2 th term In descrete series =n+1/2th term (n will be the total frequency) in distribution series = l+n/2-cf/f×i

ANSWER

Define commerce why is it of great important in modern life

Posted by Vishal Kumar 6 years, 11 months ago

CBSE > Class 11 > Business Studies

1 answers

Nikhil Dwivedi 6 years, 11 months ago

Commerce refer to all those activity which include directly or indirectly distribution of goods to the ultimate consumer.

ANSWER

Derivative of sin square x

Posted by Anu Preeti 6 years, 11 months ago

CBSE > Class 11 > Mathematics

4 answers

Pragati Gola 6 years, 11 months ago

-sin2x

Pragati Gola 6 years, 11 months ago

2sinx(-cosx)

Rishab Kumar 6 years, 11 months ago

Sin²x d/dxSinxSinx (Sinx)'Sinx+Sinx(Sinx)' CosxSinx+CosxSinx 2sinxcosx sin2x

Keshav Bindal 6 years, 11 months ago

2cos x

ANSWER

Define Marginal opportunity cost along a ppc?

Posted by Rishabh Goel 6 years, 11 months ago

CBSE > Class 11 > Economics

3 answers

Nikhil Dwivedi 6 years, 11 months ago

Marginal opportunity cost refers to opportunity per unit of additional crop of output 2 when resources continuously shifted from one opportunity to another opportunity.

Rishabh Goel 6 years, 11 months ago

Thank you

Yogita Ingle 6 years, 11 months ago

The marginal opportunity cost for a comodity is the admount of other goods which has to be given up in order to produce an additional unit of that commodity
Production Possibilities Curve(PPC) of Marginal Opportunity cost
Marginal opportunity cost of one commodity (say 'x') means the amount of another commodity (say 'y') which is sacrified to have an additional unit of 'X' commodity. Marginal opportunity cost is generally increasing.It means more and more of the other good has to be sacrifised to have per unit increase of the former commodity