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t or f
a)a process that violates the second law of thermodynamics also violates the first law of thermodynamics.
b)when a net amount of work is done on a closed system undergoing an INTERNALLY REVERSIBLE process, a net heat transfer of energy from the system also occurs.
c)a closed system can experience an increase in entropy only when a net amount of entropy is transfered into the system.
d)the change in entropy of a closed system is the same for every process between two specified states.
Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 42.1* and 48.9*, respectively, with the tensile axis.
Select the number and size of reinforcing bars required to resist a total factored moment of 180 ft. kips for a rectangular section with b = 12 in., d = 19.5 in., h = 24 in., fc = 4 ksi, and fy = 60 ksi. Check for minimum reinforcement requirement..
1. a watershed contains 16.2 ha and 24.3 ha of agricultural and residential land use respectively. the last rainfall
An element of aluminium in a form of a rectangular parallel pipe has a length 'a' along the x axis of 5.5 in, a length 'b' on the y axis of 4.5 in. Determine the maximum shear stress in the material,the change in length.
what would be better a truss with all 60 angles or a truss with a 30 60 90 angle for a bridge design what would be the best design
Ten tons of a mixture of paper and other compostable materials has a moisture content of 7%. How many tons of water must be added to the solids to achieve a mixture with 50% moisture for composting
a lagoon is 20 ft by 80 ft with a depth of 5.5 ft .Wastewater from households flow into the lagoon at 260 gal/day .How many days would it take to fill the lagoon
For a multi-file project that contains just one class, list and describe each of the files that would be required to implement and test the functions of the class.
A completely reversible heat engine uses a solar receiver for a hightemperature reservoir and a lake for a low temperature reservoir. The sun maintains the receiver surface at 290 ° F while the lake remains at 40 °F.
At a certain location along the span, a reinforce concrete beam section with d=14 in. and b=10 in. is subject to a design shear of Vu=50k. Using No.4 stirrups, compute the required stirrup spacing at the given location. assume F'c=3 ksi and Fy=40 ..
if the density of the clay is equal to 2.0 Mg/m3 ,calculate the total vertical stress ,pore water pressure and effective vertical stress at a depth of 5 meters below ground level.
A particular mixed flow pump is operating just below the point of cavitation. The pump is sited with its intake 3 m above the water level in the reservoir and delivers 0.05 m3/s.
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