3.StrategyUse the definition of average pressure. SolutionCompute the average pressure on the soles of the feet. av2(90.0 kg)(9.80 N kg)22 kPa2(0.020 m)FmgPAA====8.StrategyThe pressure increases by an amount equal to the force divided by the cross-sectional area of the piston. SolutionCompute the pressure increase. 524.40 N88.0 kPa5.0010mFPA−Δ===×14.StrategySince dis depth, d−is height. Use Eq. (9-4). SolutionFind the height that water can be sucked up a straw. atmatm33210 kPa
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