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1.A .03 m3 rigid tank initially contains R134a at 1.4MPa and 100% quality. the tank is connected by a valve to a supply line that carries R134a at 36 C and 1.6MPa. determine the mass of R134a that had entered
2.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
3.An Element of soil (sand) behind a retaining wall is subjected to an increase in vertical stress of 60kPa and an increase in lateral stress of 25 kPa. Determine the increase in vertical and lateral strains, assuming the soil is a linearly elastic material with E=20MPa and v=.3
4.The tube supports the four parallel forces. Determine the magnitude of the forces and acting at C and D so that the equivalent resultant force of the four forces acts at point O.
Knowing that the tension in cable AD is 405, determine (a) the angle between cable AD and the boom AB, (b) the projection on AB of the force exerted by cable AD at point A.
WATER FLOWS IN A PIPE AT 3 m/s A valve at the end of the pipe is suddenly closed. determine the pressure rise in the pipe.
On a particular highway, a permanent speed measuring device at one particular location has determined, over many months of observations, that the mean and standard deviation of vehicle speeds at that point are 52 miles per hour and 4 miles per hou..
If you have 10 kips acting downward on a foundation and footing, 4 feet long, with uniformly distributed load acting up ward of 2.5 k/ft (soil) also 4 ft long. what are the reactions, shear forces, and bending moments at the tree critical points
If an embankment is placed that adds an average additional stress of 32psi to the clay, compare the settlement from the laboratory consolidation test to the settlement from the estimated field consolidation curve.
Water with a static pressure of 1.96kN/M 2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M 2 . How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/se..
A signal approach has 20 seconds of displayed green, 4 seconds of yellow, and 3 seconds of all red (assume typical start-up, lost time, and clearance time). The cycle length is 60 seconds.
You and your friend go into sports bar where a dart throwing competition is going on.you buy m darts at 1 dollar each.you throw these m darts at the board.Of these, N darts hit within the inner circle.
Consider two alternative water resource projects, A and B. Project A will cost $2,533,000 and will return $1,000,000 at the end of 5 years and $4,000,000 at the end of 10 years.
An object is thrown downward from a 150-ft cliff with a velocity of 45m/hr so that it makes an angle of 60° with vertical face of the cliff.
What power must the pump supply to the system to pump the oil from the lower reservoir to the upper reservoir at a rate of .2 m^3/s. Sketch the HGL and the EGL for the system.
A four- lane undivided multilane highway ( two lanes in each direction) has 11- ft lanes and 5- ft shoulders. At one point along the highway there is a 4% upgrade that is 0.62 mi long. There are 15 access points along this grade.
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