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1.Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft*48ft*6in. the aggregate in the stockpile contains 3.1 percent moisture. If the required compaction is 95 percent of the target, how many tons of aggregate will be needed?
2.A vertical pipe of 4 ft diameter and 60 ft long has a pressure head of 22.7 ft of water at its upper end. When the flow of water through it is such that the mean velocity is 16 fps, the pipe friction head loss is hf = 2.8 ft. Find the pressure head at the lower end of the pipe when the flow is downward; upward.
an investment of $80,000 is projected to generate escalated dollar net revenues (income minus costs) of $10,000 in year one, $30,000 in year 2 and $40,000 in year 3 with a $100,000 salvage value at the end of year
When an airplane is flying 200mph at 5000-ft altitude in standardatmosphere, the air velocity at a certain point on the wing is 273mph relative to the airplane. What suction pressure is developed onthe wing at that point? What is the pressure at the ..
The current price of a company stock is $20.The company is a takeover target.If the takeover is successful.the company's stock price will increase to $30.If the takeover is unsuccessful.the stock price will drop to $12.
Also, at the failure cross sections the diameters are found to be 0.731 in., 0.645 in., and 0.587 in., respectively. Determine the percent elongation and percent reduction in area of each specimen.
What is the diameter of a circular concrete column needed to support a load of 300,000 pounds with a factor of safety of 2. Round the diameter up to the whole inch. The concrete ultimate strength is 3000 lb/in^2.
Water flows uniformly in a 6 m wide rectangular channel at a depth of 0.8m. The channel slope is 0.0015 and n=0.014. Find the flow rate in m3/s
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.
Find the magnitude of the velocity and acceleration for the point having the coordinates (3,4). Specify units in terms of L and T.
Find the correction for the calibration of the measuring tape using its formula. During the calibration of the measuring tape on comparator of 100.000m the length of the tape turned out to be of 99.993m
The beam is in equilibrium with the man standing at the end and pulling on the cable. Determine the force exerted on the cable by the man and the reactions at pinned support C.
The acceleration of a particle is defined by the relation a=-8m/s^2. Knowing that x=20m when t=4s and that x=4m when v=16m/s, determine (a) the time when the velocity is zero, (b) the velocity and the total distance traveled when t=11s.
When a 60 kg boy floats in the pool 93% of his body is submerged. How much force must he exert to stay submerged on the bottom of the pool to remain fully submerged
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