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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: properties of matter rates assured
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cutepooja (256)

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there is a system where we have bubble in a bubble and so on find the excess pressure in nth bubble and how is it related to n if n is even and n is odd



 


 


 


 


a bottle is to be emptied how should it be positioned to get the max rate of flow

at an angle

normal to tub

at angle wid rotation

how does it depend on density


" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
    
cutepooja (256)

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any one answer them yar

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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WiseIITian (15)

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A bubble has the same pressure inside and outside.

So there is no possibility of any excess pressure in the nth bubble inside.
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spideyunlimited (2686)

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2nd question

at a vaying angle
so that the amount of air entering and the amount of water leaving the bottle from the mouth are equivalent and a smooth flow is obtained/

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* Gaurav Ragtah ( aka Artemis Fowl )


* Agent 'G' [sniper] - SD-6 (Alliance of Twelve)







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WiseIITian (15)

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When a bottle is getting emptied, a lot odepends on the size of the orifice.
If the orifice is small then, the incoming air may also cause resistance in the water coming out.
In such a case, the bottle is to be held at an angle first and then slowly inverted.
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WiseIITian (15)

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If however, the orifice is big, The bottle can be inverted right away.
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cutepooja (256)

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@ wise iitian give me a proof for ur statement

for 2nd ques
@ spidey unlimited and wise iitian u both are wrong answer is
at an angle wid rotation as it creates a whirlpool thing inside the bottle and air enters and liq leaves at fastest rate i wanted to know some mathematical answer and i also want to know abt the angle dependence

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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cutepooja (256)

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and wise iitian in a bubble if pressure inside and outside are equal why does it burst after some time pls corect me if i apply wrong concepts

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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cutepooja (256)

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pls answer

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EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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cutepooja (256)

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pls answer anyone

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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aankurverma (1313)

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for 2nd 1


d angle shld b zero coz


d pressure at d top is  equalt to


hdg = 2Tcos@/r


 


h = height of d bottle ,d = density ,T = surface tension ,r = radius of d meniscus, g = acceleration due to gravity ,n @ = d angle of contact of water glass


so for max d angle shld b max i.e  0

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cutepooja (256)

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no answer is not zero then u cant rotate the bottle neither it is 90

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

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cutepooja (256)

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how r u relating it
hdg = 2Tcos@/r
it is not to be related wid capilarity

" I've shed many tears. But after, I realize, why am I crying? No matter how bad it got, it could be worse. No matter how much you think it's not going to be ok, eventually it will be. You just have to let it be."

EXPECT MORE FROM URSELF THAN FRM OTHERS AS EXPECTATION FRM OTHERS HURTS U WHILE FROM UR SELF INSPIRES U A lot
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aankurverma (1313)

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well yaar i jst say it coz a cappilarry tube is a tube which is opened bod side n d bottle is like capiillary at  d top don u think so


open frm bod sides n dip in water dats y i related it elz it can' b solved


i think so i m correct


do temme

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aankurverma (1313)

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n for 2n 1 r d bubbles of same radius

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