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A 12-ft-long cantilever supports its own dead load plus an additional uniform service (unfactored) dead load of 0.5 kip/ft. The beam is made from normal-weight 4000-psi concrete and has in., in., and in. It is reinforced with four No. 7 Grade-60 bars. Compute the maximum service (unfactored) concentrated live load that can be applied at 1ft from the free end of the cantilever. Use load and strength -reduction factors from ACI Code
How many extractions are required to decrease the concentration of phenol below 100 mg/L in a wastewater containing 2000 mg/L of phenol if an ether-to-watewater ratio of 0.2 by volume is used in each extraction
The water table is at a depth of 1 m. Compute the effective normal stress and the shear stress acting on a plane rotated 60 degrees clockwise from the horizontal at a depth of 2.5 m in this deposit.
Water occupies the bottom 0.8 m of a cylindrical tank.On top of the water is 0.3 m of kerosene, which is open to the atmosphere. If the temperature is 20 degrees C, what is the gage pressureat the bottom of the tank
The aerodynamic drag of a new sports car is to be predicted at a speed of 50mph at an air temperature of 25 degrees Celcius. Automotive engineers build a one-fifth scale model of the car to test in a wind tunnel.
Groundwater moves through a sandstone porous media and is driven by a gradient of -0.05 directed at an angle of 60 degree counterclockwise from the x-axis.
The particle has a mass of 0.6 and is confined to move along the smooth horizontal slot due to the rotation of the arm .Determine the force of the rod on the particle and the normal force of the slot on the particle when = 35.
Design a three story office building
two forces applied as shown to a hook support. knowing that the magnitude of P is 35 N, determine by trigonometry the required angle if the resultant R of the two forces applied to the support is to be horizontal and the corresponding magnitude of..
A typical propane tank that we use for barbeque initially contains a pressure of 10 psi. The pressure is low, so we take it to the local store to fill the tank with more propane. After filling,the pressure is 100 psi.
A quartzite sample in a compression testing machine is 180mm long and 54mm in diameter. what is the stress under a load of 100kN? if the modulus of elasticity is 102kN/mm2, find the strain develope in the sample.
Determine the volume of direct surface runoff in acre-ft that will result from the following storm. The basin area is 1000 acres. The phi index is 0.5 in./hr. 30-minute period 1 2 3 4 Rain intensity (in./hr) 0.9 0.5 0.6 0.5
A confined aquifer has a specific storage of 2.5 * 10^-6 /m . The porosity is .20 and the water compressibility is 5 * 10-10/Pa.For the aquifer skeleton compressibility you just calculated, what would the aquifer specific storage be if porosity were ..
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