In a long narrow glass tube sealed at one end and located horizontally, there is a column of air with a length of l1 = 307 mm, locked with a column of mercury with a length of l = 216 mm. What will be the length of the air column if the tube is placed vertically: with the hole up; hole down? Atmospheric pressure patm = 747 mm Hg. Art. The density of mercury is p = 13.6 • 103 kg/m3. Mercury does not pour out of the tube.
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