Determine the new differential reading along the inclined leg of the mercury manometer of the figure below, if the pressure in pipe A is decreased 20 kPa and the pressure in pipe B remains unchanged. The fluid in A has a specific gravity of 0.9 and the fluid in 8 is water. Assume hy-20 mm, h₂-10 mm, hy - 16 mm. -SG-0.9 Water Mercury
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