3.40. Referring to Fig. 3-32, determine (a) the force exerted by water on bottom plate AB of the 1-m-diameter Ans. 38.45 kN, 269 kN riser pipe and (b) the total force on plane C

International Edition---engineering Mechanics: Statics, 4th Edition
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Chapter8: Centroids And Distributed Loads
Section: Chapter Questions
Problem 8.122P: The 12-ft wide quarter-circular gate AB is hinged at A. Determine the contact force between the gate...
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CHAP 54
3.39.
HYDROSTATIC FORCE ON SURFACES
sp gr 1.60
The care-
Fig. 3-31
0.61 m R
If the dome in Problem 3.38 is changed to a hemispherical dome of the same diameter, what is the vertical.
force acting? Ans. 60 kPa
3.40. Referring to Fig. 3-32, determine (a) the force exerted by water on bottom plate AB of the 1-m-diameter
riser pipe and (b) the total force on plane C Ans. 38.45 kN, 269 kN
4 m D
IMD
Fig. 3-32
8' D
2 m
3.41. The cylinder shown in Fig. 3-33 is 10 ft long. Assuming a watertight condition at A and no rotation of the
cylinder, what weight of cylinder is required to impede motion upward?
Ans. 12,700 lb.
Fig. 3-33
[CHAP. 3
3 m
#=0.150
3.42. A wood stave pipe, 48 in inside diameter, is bound by flat steel bands 4 in wide and in thick. For an
allowable stress of 16,000 psi in the steel and an internal pressure of 160 psi, determine the spacing of the
bands.
Ans. 12.5 in
Transcribed Image Text:CHAP 54 3.39. HYDROSTATIC FORCE ON SURFACES sp gr 1.60 The care- Fig. 3-31 0.61 m R If the dome in Problem 3.38 is changed to a hemispherical dome of the same diameter, what is the vertical. force acting? Ans. 60 kPa 3.40. Referring to Fig. 3-32, determine (a) the force exerted by water on bottom plate AB of the 1-m-diameter riser pipe and (b) the total force on plane C Ans. 38.45 kN, 269 kN 4 m D IMD Fig. 3-32 8' D 2 m 3.41. The cylinder shown in Fig. 3-33 is 10 ft long. Assuming a watertight condition at A and no rotation of the cylinder, what weight of cylinder is required to impede motion upward? Ans. 12,700 lb. Fig. 3-33 [CHAP. 3 3 m #=0.150 3.42. A wood stave pipe, 48 in inside diameter, is bound by flat steel bands 4 in wide and in thick. For an allowable stress of 16,000 psi in the steel and an internal pressure of 160 psi, determine the spacing of the bands. Ans. 12.5 in
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