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Physics Chemistry

Engineering :: Fluid Mechanics and Hydraulic Machines


  What pressure differential, in pascals, exists at the bottom of a 3 m vertical wall if the temperature inside is 20?C and outside it is -20?C. Assume equal pressures at the top
[A]. 15[B]. 12
[C]. 9[D]. 6
[E]. 3    

Answer: Option D


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