5. Very small pressure differences PA - PB can be measured accurately by the two-fluid differential manometer shown below. Density 2 is only slightly larger than that of the upper fluid 1. Derive an expression for the pressure difference pa - Pg if the reservoirs are very large. PA PB P1

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A: GIVEN :diameter D1 =40 mm diameter D2 =60 mm velocity V1 =5m/s rate of flow in section 3= 0.012 m3/s

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Q: Convert the following readings of pressure to kPa assuming that barometer reads 760 mm of Hg. a. 80…

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