416 Fluid MechanicsP14.11The excess water pressure (over air pressure) halfway down isPghgauge32kg mm smPa===×ρ1000980120118 104ejejaf..The force on the wall due to the water isFP A×=×gaugePammN1 18 102 409 602 71 1045..afhorizontally toward the back of the hole.P14.12The pressure on the bottom due to the water iszb==×196 104. PaSo,FPAbb×588 106NOn each end,A×=980 102001963PamkN2On the side,A×=6005883PamkN2P14.13In the reference frame of the fluid, the cart’s acceleration causes a fictitious force to act backward, as ifthe acceleration of gravity were ga22+directed downward and backward at θ=FHGIKJ−tan1agfrom thevertical. The center of the spherical shell is at depth d2below the air bubble and the pressure there isPP gh Pdg a=+= ++0012ρρeff.P14.14The air outside and water inside both exert atmospheric pressure,so only the excess water pressure ghcounts for the net force. Take
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .