Q: The water in a 25-m-deep reservoir is kept
The water in a 25-m-deep reservoir is kept inside by a 90-m-wide wall whose cross section is an equilateral triangle, as shown in Fig. P11–47. Determine (a) the total force (hydrosta...
See AnswerQ: A raft is made using a number of logs 25 cm in
A raft is made using a number of logs 25 cm in diameter and 2 m long, as shown in the figure. It is desired that a maximum 90 percent volume of each log will be submerged when carrying two boys weighi...
See AnswerQ: The 280-kg, 6-m-wide rectangular gate
The 280-kg, 6-m-wide rectangular gate shown in Fig. P11–49 is hinged at B and leans against the floor at A, making an angle of 45° with the horizontal. The gate is to be o...
See AnswerQ: Consider a submerged curved surface. Explain how you would determine the
Consider a submerged curved surface. Explain how you would determine the horizontal component of the hydrostatic force acting on this surface.
See AnswerQ: Repeat Prob. 11–49 for a water height of 0
Repeat Prob. 11–49 for a water height of 0.8 m above the hinge at B. Data from Prob. 11-49: The 280-kg, 6-m-wide rectangular gate shown in Fig. P11–49 is hinged at...
See AnswerQ: Calculate the total potential energy, in Btu, of an object
Calculate the total potential energy, in Btu, of an object that is 20 ft below a datum level at a location where g = 31.7 ft/s2 and which has a mass of 100 lbm.
See AnswerQ: The volume of a rock is to be determined without using any
The volume of a rock is to be determined without using any volume measurement devices. Explain how you would do this with a waterproof spring scale.
See AnswerQ: Consider a submerged curved surface. Explain how you would determine the
Consider a submerged curved surface. Explain how you would determine the vertical component of the hydrostatic force acting on this surface.
See AnswerQ: Consider a circular surface subjected to hydrostatic forces by a constant density
Consider a circular surface subjected to hydrostatic forces by a constant density liquid. If the magnitudes of the horizontal and vertical components of the resultant hydrostatic force are determined,...
See AnswerQ: Consider a 200-ft-high, 1200-ft-
Consider a 200-ft-high, 1200-ft-wide dam filled to capacity. Determine (a) the hydrostatic force on the dam and (b) the force per unit area of the dam near the top and near the bottom.
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