21. The U-tube manometer poured mercury. Open knee mano

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21. The U-tube manometer poured mercury. Open knee manometer is connected to the surrounding space at atmospheric pressure ρ0, and mercury in an open knee stands higher than the closed at Δh = 10 cm. The free part of the mercury tube closed knee has a length l = 20 cm. When the open knee attached to the balloon with air, the difference in mercury levels increased and reached a value Δh1 = 26 cm. Find the air pressure p in the cylinder.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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