[nelly23]

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?
Express your answer using two significant figures.

[Borek]

Please read forum rules. You must show that you have attempted the question.

[Arkcon]

Well, lets strt with the max length of a straw you can sip water through at sea level.  I for one, don't know how to solve that problem.

[Borek]

Torricelli, horror vacui, why do we pump water up instead of sucking it up?

To quote wikipedia:

In 1643, Galileo Galilei, while generally accepting the horror vacui of Aristotle, believes that nature’s vacuum-abhorrence is limited. Pumps operating in mines had already proven that nature would only fill a vacuum with water up to a height of 30 feet. Knowing this curious fact, Galileo encourages his former pupil Evangelista Torricelli to investigate these supposed limitations. Torricelli did not believe that vacuum-abhorrence was responsible for raising the water. Rather, he reasoned, it was the result of the pressure exerted on the liquid by the surrounding air. To prove this theory, he filled a glass tube, sealed at one end, filled with mercury and upended it into a dish also containing mercury. Only a portion of the tube emptied (as shown adjacent); 30 inches of the liquid remained. As the mercury emptied, a vacuum was created at the top of the tube. This, the first man-made vacuum, effectively disproved Aristotle’s theory and affirmed the existence of vacuums in nature.