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1. In a steady-state single flow, s is either constant or it increases. Is that true?
2. If a flow device has the same inlet and exit pressure, can shaft work be done?
3. A polytropic flow process with n = 0 might be which device?
4. If we follow a mass element going through a reversible adiabatic flow process, what can we say about the change of state?
a spherical pressure vessel has an outer diameter of 10 ft and a wall thickness of 0.5 in. knowing that for the steel used ?all= 12 ski, E= 29 x 10^6 psi, and v= 0.29, determine (a) the allowable gage pressure,
Samples of a dry sand are to be tasted in a direct shear test and a triaxial test. In the triaxial test, the sample fails when the major and minor principal stresses are 140 psi and 40 psi, respectively.
Discuss with the trainee how the design is affected by the choice of materials chosen for a now building. Examine the factors that affect the specification of materials for any building taking into account the various sizes and uses of the buildin..
How many years would it take for money to triple in value at 20% per year simple interest? Please be descriptive on where the numbers and formulas comes from.
determine the horizontal spacing of the vertical drains if the drains are installed in triangular grid to reach 90% of primary consolidation in 1.5 years after the commencement of fill placement
For an SO2 emission rate of 22,000 kg/day and an exhaust gas flow rate of 5.0 million m^3/hour(after the scrubber) measured at 150 C and 1atm pressure, calculate the concentration of SO2 in the exhaust gases(ppm).
What is the pH of the solution created by combining 0.90 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?
An alloy is made up of 199.4 lbm copper, 204 lbm zinc, and 4.2 lbm lead. What is the composition, in atom percent, of the Cu-Zn-Pb alloy.
A coast guard helicopter hovers between an island and a damaged sailboat. How would you calculate the direct distance between the helicopter and the sailboat? From the island, the angle of elevation to the helicopter is 73 degrees.From the helicopter..
All four of B's wheels were locked and skid marks indicate that B slid 2 m after impact. If you estimate the coefficient of kinetic friction between B's tires and the road to be 0.4 and the coefficient of restitution to be 0.4
The rectangular beam is 18 ft long and subjected to a uniformly distributed dead load of 1.5 kip/ft (not including the beam weight), a live load of 1.5 kip/ft, and a load of 2 kip/ft by earthquake effect.
A balloon is being inflated at the rate of 15m^3/min. At what rate is the diameter increasing after 5 min? Assume that the diameter is zero at time zero.
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