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A piston/cylinder has forces on the piston, so it maintains constant pressure. It contains 2 kg of ammonia at 1 MPa, 40?C and is now heated to 100?C by a reversible heat engine that receives heat from a 200?C source. Find the work out of the heat engine using the exergy balance equation.
Determine the range of allowable values of the tension in wire BD if the magnitude of the couple at the fixed support C is not to exceed 100 N .m.
The carrier does not intend to offer weekend service. Therefore, the carrier will offer daily round-trip flights Monday through Friday. The following table presents passenger demand estimates and fares charged by competitors
Knowing that the modulus of rigidity is 77 GPa for the steel and 27 GPa for the aluminum, determine the largest angle through which end A can be rotated if the following allowable stresses are not be exceeded
Water flows uniformly in a rectangularlined with a glass surface 0.018, channel width is b=10m, the flow depth is y=0.5m ,slope is =0.008 determine the volume flow rate from the manning equation and the critical depth
A laboratory consolidation test was performed on a clayey soil specimen, which was drained on both top and bottom. The time for 50% consolidation was 6.2 minutes, and the specimen's thickness at 50% consolidation was 0.740 in.
Water flows in a 100 m long pipe at 3 m/s. If the water temperature is 20 degrees C, determine the minimum valve-closure time to avoid creating water hammer pressures. What is the maximum water-hammer pressure that can occur
Steel design problem A w14X74 of A992 Steel has a length of 20 feet and fixed ends. Compute the design compressive strength for LRFD and the allowable compressive strength for ASD. please give solution step by step
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
How does the situation change if you install sprinklers? In each case, what level of fi re protection is required for the structural frame of the building?
DISCUSS THE LIMITATION AND PROBLEM OF EXTRAPOLATING MECHANICAL PROPERTIES MEASURED ON A SMALL ROCK SAMPLE TO FIELD SITUATIONS.
Since soil borings only provide general information concerning the different soil layers and patterns, how will this impact the estimation of the number of tiebacks?
Calculate the approximate design load due to concrete pressurefor a wall fromwork 9ft high to be poured at 6.5ft per hour at atemperture of 68 degree f.
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