[tanne]

I'm stuck on how to apply the concepts to this problem:

Suppose that a liquid is 12 times denser than water.

If you were to sip this liquid at sea level using a straw, what would be the maximum length of the straw.

Now I do know that the density of H20 is 1g/mL and the pressure at sea level is 1 atm. Can someone just point me in the right direction?

Appreciate it...

[tanne]

So I've found my answer but it has me perplexed. I've figured out that water can be sucked through a straw to a maximum of 10.3 meters.

Does anyone know how this is calculated? This was not the final answer to my original question...final answer was 10.3/12.

I'm just trying to understand this concept...

Thanks a mil.

[Borek]

What is force exerted by the cylinder of water if its height is 10.3 m and cross section of the cylinder is 100 cm²?

What is force exerted by pressure of 1 atm on the surface of 100 cm²?

[tanne]

Well, force = pressure x area but how do you do the math? I know the answer but I don't know how to do it.

f = 1atm x 100cm²

  = 1013.25 newton

I'm lost on the first question. Do you mind explaining?

[Borek]

What is mass of the water in the cylinder? How is force defined - how do you calculate it?