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a navel gun (E= 30,000 ksi and G = 11,600 ksi) with a bore of 16 in. develops a maximum internal pressure of 20,000 psi. Determine
a. the minimum outside diameter required if the maximum tensile stress permitted in the gun barrel is 36,000 psi.
b. the change inside diameter when the gun is fired if the outside diameter of part a is used.
At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterio..
Sketch and annotate the wedge described above.
A light rail transit agency operates trains over a 25-km long single-track line. During the peak period, it operates five trains at 15-min headway. Train travels at an average speed of 50 km/hr.
An equal-tangent crest vertical curve has a 50 mi/h design speed. The initial grade is +3%. The high point is at station 33+37.43 and the PVT is at station 37+18.26. What is the elevation difference between the high point and the PVT?
A 600 MWe power plant has an efficiency of 36% with 15% of the waste heat being released to the atmosphere as stack heat and the other 85% taken away in the cooling water.
The number of hours on each machine required to produce a product is given in the following table, along with the number of hours available per week on each type of machine. Assume that the company can sell everything it produces.
What would be the Horizontal and vertical component from this acting force see diagram
how to find degree of kinematic indeterminacy
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
Using the ADA code, what is the allowable minimum length of the ramp base if base if it is 2 ft high and the code is 1:12
Explain how the desert air can contain much more h 2 o vapor in the air than the pole, and still a lower humidity than the pole? what causes the difference between dry and moist lapse rate?
a wall 8 ft high is 3/3/8 ft. from a house. find the shortest ladder which will reach from the ground house when leaning to the wall.
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