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1.A three-point bending test is performed on a aluminum oxide specimen having a circular cross section of diameter 10.0 mm; the specimen fractured at a load of 3000 N when the distance between the support points was 40 mm. Another test is to be performed on a specimen of this same material, but one that has a square cross section of 15 mm in length. At what load would you expect this specimen to fracture if the support point separation is maintained at 40 mm?
2.In prestressing work, if more than one wire or strand is included in the same duct, why should all wires/strands be stressed at the same time?
3.The contractor ran out of gunite mixture and finished the deep corner of a 5-m-wide swimming pool, with a quarter circle pipe of PVC pipe, . compute the horizontal and vertical forces on the curved panel AB.
A tire carries a 5,000-lb load and has a pressure of 100 psi. The pavement has a modulus of elasticity of 43,500 psi. A deflection of 0.016 inches is observed at a point on the pavement surface 0.8 inches away from the tire load.
A specimen of saturated soil has a water content of 145 percent and a total unit weight of 84 pcf. Find the void ratio and specific gravity of solids.
What is the terminal settling velocity of a particle with a specific gravity of 1.4 and a diameter of 0.01 mm in 20 degrees celcius water. What is the smallest diameter particle of specific gravity 1.4
The driver strikes the sign at a speed of 25 mi/h. If the student was traveling at 55 mi/h when the sign was spotted, what was the drivers associated reaction time in seconds
If the difference in weight between the two baskets must greater than 15 lb they will not have the strength to operate the pulley. The King weighs 195 lb, the princess weighs 105 lb, and the prince weighs 90 lb.
The force of the expanding gases on a 0.02 kg bullet is given by f=f0-f.1*t . Initially stationary at x=0 , the bullet reaches a speed of 1000 kph by the time it exits the gun. f0 = 7000 N and f1=2.9*106 N/s.
A computer CPU chip consists of 50 g silicon,20g copper, and 50 g polyvinyl chloride (plastic). It heats from 15?C to 75?C as the computer is turned on. How much did the entropy increase
The hydraulic conductivity of a coarse sand was measured in the laboratory permeameter and found to be 1.03x10^-2 cm/s at 25 degrees C. What is the intrinsic permeability
A 780-g mass is attached to a vertical spring and lowered slowly until the mass rests at its equilibrium position 30 cm below the original length of the spring. It is then set into simple harmonic motion of amplitude 5 cm.
How many truckloads of trucks hauling an average volumeof 6 LCY (4.6 LCM) would be required to haul 1 million CCY (764, 600 CCM) of gravel to a dam site?
Determine the flow rate of water (20 degrees celcius) that will cause a pressure drop of 17250 N/m^2 in 350m of horizontal, cast-iron pipe (d=60cm). assume minor losses are negligibe
Find the center of gravity of the given composite body when the specific weight of brass is .306 lb/in^3 and the specific weight of aluminum is .101 lb/in^3
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