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at b Example 4. A thin tube of uniform cross-section is sealed both ends. It lies horizontally, the middle 5 cm containing Hg and the two equal ends containing air at the same pressure P. When the tube is held at an angle 60° with the vertical, the lengths of the air column above and below the mercury are 46 cm and 44.5 cm respectively. Calculate pressure P, in cm of Hg. (The temperature of the system is kept at 30°C). Y 46 cm D aa a X 44.5 cm - 5 cm

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A thin tube of uniform cross-section is sealed at both ends. It lies horizontally, the middle 5 cm containing mercury and the two equal ends containing air at the same pressure Po. When the tube is held at an angle 60o with the vertical, the lengths of the air column above and below the mercury are 46 and 44.5 cm respectively. The pressure Po in cm of Hg is: (The temperature of the system is left at 30 K.)


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