Pressure problems

[Primarygun]

For question 13, which may be viewed as 3 in the tif,

isn't the height giving out the same pressure, so my answer for it

is that:

iii has the greatest pressure then, ii = i .

But the answer is i=ii=iii. Why?

 

For the last question on the right bottom,

I could predict the phenomenon but cannot explain it very clearly,

May anyone explain it ?

http://hk.geocities.com/quarkquarkquark2001/physics.gif

I don't know why it can't be showed directly by IE but Firefox, it may be downloaded first.

And, this is also my problem, can anyone explain this too?

[Rocket Man]

that makes NO sense, iii has more height, "mm h20" IS a recognised pressure value.

 

"how much pressure is exterted on the bottom of the container"

it might mean force instead... actually, no, that would give ii as the greatest followed by i=iii

 

perhaps it's a mistake.