If the Hg and water columns are not moving, weight of Hg in the column must equal weight of water in the column. Show that $\rho_{Hg}l_{Hg} = \rho_w l_w$ ($\rho$ = density).
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Step 1: Define variables: ρ_Hg = density of mercury, ρ_w = density of water, h_Hg = height (length) of the mercury column, h_w = height of the water column, A = common cross-sectional area of the columns, g = acceleration due to gravity. Show more…
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