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A long, clear, flexible tube is bent into a U shape (open at both ends), and...

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Physics

A long, clear, flexible tube is bent into a U shape (open atboth ends), and we pour water into it (density 1000 kg/m3) untilthe water reaches the same level on both vertical sides. Now wepour a 7 cm tall column of mercury into the left side (density13,600 kg/m3), which does not mix with the water.

(a) When the fluids reach equilibrium, find the difference inelevation between the top of the mercury (on the left) and the topof the water (on the right). Which end is higher?

(b) Find the difference in elevations if the liquids arereversed, i.e., if the tube is first filled with mercury, then 7 cmof water is poured in at the left end. Which end is higher in thiscase?

Answer & Explanation Solved by verified expert
4.0 Ratings (729 Votes)
a Let us assume that the height on the right side of the tubewhich is filled with water at top isHw and that on the    See Answer
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