|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Jan 2008 22:46:39 IST
|
|
|
while using the bernoulli's equation(as in efflux etc.) in the (density.g.h)component why do we measure h from the bottom of the container???
|
we are the allies of konoha.....shinobis of the....sand
shubham sunder |
|
|
|
24 Jan 2008 23:41:08 IST
|
|
|
P = F/A = mg/A = gV /A = Ahg/A = gh
 dP = g dh
Hence
The pressure depends upon the height =  dh
Actually its nothing but the summation of the small-small pressure differences (dP) which start from the point where we want to measure the pressure and up to the point where the last fluid line lies.
Hence the limit of this integral is from the point where we want to know the pressure to the uppermost point (as a summation)
|
this reply: 10 points
(with 2 
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
25 Jan 2008 11:46:27 IST
|
|
|
You want to measure the pressure exerted by the fluid at the point that's moving out.
That height is measured from the top(the same way as in the derivation of the formula h g)
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
25 Jan 2008 20:10:57 IST
|
|
|
sorry guys.....
i wrote the question a bit wrong earlier....
the p is measured from the bottom???
|
we are the allies of konoha.....shinobis of the....sand
shubham sunder |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
