Simple Question for my homework

[noobies]

could u guys please help me, i need to determine the pressure difference between the two pipelines, and i know how to calculate those problem, but the problem is should i just ignored the air column in my analysis to find the difference pressure??

please help, and thanks in advanced

 

[noobies]

please let me know if possibly the way that I am asking for help doesn't suit with any of this forum term okay, I am still new here thanks mate

 

[berkeman]

I'll move your thread to Intro Physics to get it more views.

I would think you would need to use the Ideal Gas Law for the air portion, and it seems like the pressure would be uniform throughout the air portion...

 

[mgb_phys]

What are you actually trying to find - what's the question?

 

[noobies]

What are you actually trying to find - what's the question?

i need to find the difference of the pressure between those two pipelines, i just need to know if i need to consider the air columned too??or should be ignored??once i know it, i can proceed with the calculation by my self (perhaps)

thanks for ur reply

regards
noobies

 

[noobies]

I'll move your thread to Intro Physics to get it more views.

I would think you would need to use the Ideal Gas Law for the air portion, and it seems like the pressure would be uniform throughout the air portion...

thanks mate

 

[mgb_phys]

I see, the circles are pipes running out of the page - they looked like sealed bulbs forming a thermometer!
The pressure at each end of the air column must be the same. The air will compress - but that doesn't change things. It's exactly equivalent to just having the two water columns with a moveable piston between them.

 

[noobies]

I see, the circles are pipes running out of the page - they looked like sealed bulbs forming a thermometer!
The pressure at each end of the air column must be the same. The air will compress - but that doesn't change things. It's exactly equivalent to just having the two water columns with a moveable piston between them.

is actually U turn manometer, you know that the pressure at each end must be d same..so should i ignored the air columned? to finde the diff between each end?