Based on the calculations, the absolute pressure in the pipe is equal to 90,670.4 N/m².
Mathematically, absolute pressure can be calculated by using this formula:
[tex]P_{abs} = P_{atm} + P_{guage}[/tex]
Scientific data:
Atmospheric pressure (Patm) = 1 bar = 1 × 10⁵ N/m²
Head (h) = -70mmhg = -0.07 m hg
Acceleration due to gravity = 9.8 m/s²
Density of mercury = 13,600 kg/m³.
Next, we would determine the gauge pressure:
[tex]P_{guage} = \rho gh\\\\P_{guage} = -13600 \times 9.8 \times 0.07\\\\P_{guage} = -9,329.6\;N/m^2[/tex]
Now, we can calculate the absolute pressure:
[tex]P_{abs} = P_{atm} + P_{guage}\\\\P_{abs} = 1 \times 10^5 - 9329.6[/tex]
Absolute pressure = 90,670.4 N/m².
Read more on absolute pressure here: brainly.com/question/10013312
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