Mercury and water are poured in communicating vessels. height of the water column 34. How much lower is the level of mercury.

To calculate the location of the mercury level relative to the water level, we use the formula: Δh = hв – hрт = hв – (ρв * g * hв) / (ρрт * g) = hв * (1 – ρв / ρрт).
Data: hв – water column (hв = 34 cm); ρw – water density (ρw = 10 ^ 3 kg / m3); ρрт – density of mercury (ρрт = 13.6 * 10 ^ 3 kg / m3).
Calculation: Δh = hв * (1 – ρв / ρрт) = 34 * (1 – 10 ^ 3 / (13.6 * 10 ^ 3)) = 31.5 cm.
Answer: The mercury level is 31.5 cm lower.