Neco 2021 Physics Question 7
Practice essay / theory question 7 from the 2021 Neco Physics examination. This question covers Pressure, Fluid statics, Hydrostatic pressure, Force .
A U‑tube manometer has mercury (density \(\rho_{Hg}=13600\,\text{kg m}^{-3}\)) in one arm and an unknown liquid of density \(\rho\) in the other arm. The mercury levels differ by \(8.0\,\text{cm}\) and the levels of the unknown liquid differ by \(12.0\,\text{cm}\). Atmospheric pressure is \(101.3\,\text{kPa}\). The manometer is connected to a piston that is placed at the bottom of a well 30.0 m deep, the well being open to the atmosphere at the surface. The piston has a circular cross‑section of area \(0.025\,\text{m}^{2}\).
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This is Neco 2021 Physics Question 7. It is one of the essay questions from the 2021 Neco Physics examination.
The question covers Pressure, Fluid statics, Hydrostatic pressure, Force .
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