A cubical block having side length 10cm is floating at the interface of water and oil the block is partially immersed . density of oil is 0.6g/cc and 2cm length of cube is inside water
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The pressure above that of the atmosphere at the lower face of the block is ΔP = 800 N//m^(2)
Explanation:
ΔP = ρ(oil) + gh (oil) + ρ(w)gh(w)
ΔP = (600) x (10) x (10 x 10^(-2)) + (1000 x 10 x 2 x 10^(-2))
ΔP = 6000 x 0.1 + 20,000
ΔP = 600 + 200
ΔP = 800 N//m^(2)
Thus the pressure above that of the atmosphere at the lower face of the block is ΔP = 800 N//m^(2)
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