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Introductory Physics Homework Help
Force needed to pull out a plug out of a drain under water?
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[QUOTE="qwertyqwert321, post: 5499245, member: 595206"] [h2]Homework Statement [/h2] The plug for the drain of a water tower is located 3.0 m below the surface. The plug is circular and has a diameter of 5.0 cm. If the density of water is 1000 kg/m3 , how much force is required to remove the plug (you may ignore the weight of the plug itself) [h2]Homework Equations[/h2] A= pi * r ^2 F=P *A [h2]The Attempt at a Solution[/h2] A = pi * r^2 = pi * (0.025)^2 =1.96 * 10 ^-3 m^2 F= pGH * A = (1000 kg/m3) (9.8) (3.0 m) * 1.96 * 10 ^-3 m^2 = 57.624 N is this correct? there is no pressure from the atmosphere right? [/QUOTE]
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Introductory Physics Homework Help
Force needed to pull out a plug out of a drain under water?
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