A column 34 feet high and 1in2 weights 15lb. [ P=F/A ] What is ..?

Question

A column 34 feet high and 1in2 weights 15lb. [ P=F/A ] what is the pressure produced by a column of water 34 geet hogh and area 2 in x 2 in =4 in2 in area?

Answer 1

It's 15 psi (assuming the material in the column described as weighing 15 lb is water). The only thing that increases with the area at the bottom is the force. The pressure only depends on the height.

Answer 2

Once you get used to wearing them, they should not hurt other than if you've been wearing them all day long. Heels over 4.5 inches are difficult to wear because they are so high - however, most regular footwear is around 3-4 inches. I wear heels all the time and have no problems at all as long as the shoes/boots themselves are well made. Some women's heeled shoes/boots are poorly designed - if you look at the shoe itself you can see it straight away - they are not the correct shape for your foot and almost 'tilt' you forwards. I think this is just crappy design. This type of footwear is a killer and your feet ache more or less straight away after putting them on. Next time you come across somebody suffering ask to have a look at the shoe itself - you can see straight away if it's not the right shape. I cannot say exactly what is wrong with the shape, it's just not quite right. Of course, squeezing your feet into anything that is too narrow or not the right size is going to hurt but I wear my boots all day long (and they have a 4.5" heel) and barely even notice them). I hope this helps.

Answer 3

when you say "1 in2" do you mean "1 inch squared?"

If so... if that weighs 15 lb and the area is one square inch, then the pressure is 15psi.

If the surface area changes to 2x2 inches, which is 4 square inches, your new pressure would be 60psi.

Answer 4

30 p.s.i