A close tank contains 0.5 m of mercury 2 m of water, 3 m of oil of density 600 kg/m3 and there is an air space above the oil. If the gauge pressure at the bottom of the tank is 200 KN/m², what is the pressure of the air at the top of the tank?

i do not know

Explanation:

sure

Explanation:

user: lethal_bacon534

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