Question Of the Day - 14-01-09. Time to empty a sphere.

1

skygirl ·2009-01-14 10:09:28

wat is there inside the sphere??

air ??

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1

skygirl ·2009-01-14 10:40:15

is it 2âˆš(R/g) by chance ?? (little bit tukka :P)

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1357

Manish Shankar ·2009-01-14 10:41:27

where is a!!!??

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1

skygirl ·2009-01-14 10:51:27

it is small naa........

so....

kho gaya :P

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1

skygirl ·2009-01-14 11:24:16

wont the vel of lq through the hole be same as efflux vel ... ??

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1

skygirl ·2009-01-14 11:26:08

yeah one prob .... area of cross section not fixed newhere.....

huh!

me talking nonsense...

neend me socte hain iske bare me [3]

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1357

Manish Shankar ·2009-01-14 11:43:00

:)

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1

Aditya ·2009-01-14 21:20:22

where exactly is the hole from bottom?.....if it is at the bottommost point , time reqd shud b infinite as philip said.

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1

Philip Calvert ·2009-01-14 21:34:06

hole is "at the bottom" aditya

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9

Celestine preetham ·2009-01-14 23:11:50

use v=√2gh

dVolume/dt = av
express volume as function of height
and integrate to find time

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1

skygirl ·2009-01-15 19:18:02

is the time...

t= 2R²/g√2Rg/(R⁴-a⁴) (1- a²/R²)

??

(most ganda ans of this new year..)

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14-01-09. Time to empty a sphere.

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14-01-09. Time to empty a sphere.

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