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A rectangular concrete beam of width b = 24 inches is limited by architectual considerations to a maximum total depth of h = 16 inches. it must carry a total factored load moment of Mu = 400 ft-kips. Design the flexural reinforcement for this member, using compression steel if necessary. Allow 3 inches to center of the bars from the compression or tension face of the beam. Materal strengths are Fy = 60,000 psi and F'c = 4,00 psi. Select Reinforcement to provide the needed areas , and show a sketch of yuor final design, including provision for no.4 stirrups.
A model of a submarine, at 1:15 scale, is to be tested at 0.8 ft/s in a wind tunnel at standard at mospheric pressure, while the prototype will be operated in seawater. Both the air and water are at 10 C (50 F).
A glass tube with inside diameter of 2-mm is inserted vertically into a dish of mercury at 20°C. Determine the difference in mercury levels inside and outside the tube.
Methane is compressed in a piston-cylinder device from initial pressure of 110 kPa and an initial temperature of 25 oC to a final pressure of 1,00 MPa. The compression process is polytropic with n = 1 .10.
In a certain chemical plant, a closed tank contains ethyl alcohol to a depth of 50 ft. Air at a pressure of 25 psi fills the gap at the top of the tank. Determine the pressure at a closed valve attached to the tank 10 ft above its bottom.
How do you calculate the force of water hitting a concrete cylindrical pole. The velocity of the water is 2 ft/s, the depth of the water is 10 ft, and diameter of the pole is 3 ft. So what would be the total force exerted on the pole by the water?
Water in a pip has a pressure of 22.1 lb/ft2. What is the pressure head?
A structural component in the form of a very wide plate is to be fabricated from 4340 steel that was cooled using a fast cooling rate and has a yield strength of 1515 MPa and a fracture toughness (KIC) of 60.4MPam.
The flow out of a reservoir is 2 L/s. The reservoir surface is 5 m x 5 m. How fast is the reservoir surface dropping?
An aluminum alloy tube with an outside diameter of 2.9 in. and a wall thickness of 0.32 in. is used as a 19-ft-long column. Assume that E = 8300 ksi and that pinned connections are used at each end of the column.
Wastewater from a paper mill contains ultimate BOD of 200ppm and DO of 3ppm, water is discharged at a rate of 100,000 gallons per day into a river, the river has a flow of 1 million gallons per day with no BOD
If the pressure in pipe B is decreased 10 kPa and the pressure in pipe A remains unchanged, determine the new reading along the inclined leg of the mercury manometer.
The aquifer characteristics are: Ambient temperature=8 oC Hydraulic conductivity = 123 ft/day Hydraulic gradient = 0.00091 ft/ft Effective porosity = 0.31 Total organic carbon = 198 mg/kg Bulk density = 1.65 g/cm3
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