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Three prismatic bars, two of material A and one of material B, transmit a tensile load P. The two outer bars (material A) are identical. The cross-sectional area of the middle bar (material B) is 50% larger than the cross-sectional area of one of the outer bars. Also, the modulus of elasticity of material A is twice that of material B. a. What fraction of the load P is transmitted by the middle bar? b. What is the ratio of the stress in the middle bar to the stress in the outer bars? c. What is the ratio of the strain in the middle bar to the strain in the outer bars?
A turbine discharges water at 0.4 m3/s under a head of 10.50 m and with an overall efficiency of 80 %. determine what is The power developed.
A hydroelectricity plant is supplied from a resevoir via a pipeline 2km long and 2.5m in diameter. The pipeline terminates at the downstream end at in a control valve. Determine the minimum surge tank size if the max allowable height
Sketch a streamline, pathline, and streakline, For a given flow the velocity from time t=0 to t=5s was u=2 m/s, v=0. Then from t=5s to t=10s the velocity was u=+3 m/s, v=-4 m/s. A dye streak was started at t=0
Design a horizontal curve with a 40-degree central angle (delta=40) for a two-lane road with 11-ft lanes. The design speed is 70 mi/h and superelevation is limited to 0.06ft/ft. Give radius, degree of curvature, and length of curve
The VMA of a mixture is 15.0% and the air voids are 4.0%.If the aggregate has a specific gravity (bulk dry) of 2.700 g/cm3 and percent binder absorbed (by the mass of aggregate) is 0.5%, calculate the asphalt content by weight of mix.
If the elevation difference between the water surfaces is y = 25 + x/11 metres, what minimum pipeline diameter will be required to convey the design discharge? Once your design is complete, determine the actual discharge. The value of x equals 23.
Estimate the daily emissions of sulfur dioxide, nitrogen oxides as NO2, and particulate matter from an industrial steam-generating plant equipped with a dry-bottom pulvurized-coal firing system.
An 8.5 m compacted fill is to be placed over the soil profile. Consolidation tests on samples from points A and B produced the following results. a) Calculate the consolidation settlement caused by the weight of this fill.
What is the maximum column load in kips that could be placed on a 4-ft square temporary footing on a sand for which the standard resistance is about N=15 and the water table is at the surface
The crate has a wieght of W = 350lb., and the coefficients of static and kinetic friction are us = 0.3 and uk = 0, respectively. Determine the friction force on the floor. Theta = 45 degrees and P = 100lb.
List the densities in solid, liquid and gaseous state. Also compare the densities for each of them and calculate the density it will have in any ideal gas state.
What is the maximum distance away that the navigation lights can still be seen by an observer standing at the shoreline The observer's eye height is 5'6" and the uppermost navigation light is 168 above the water.
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