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An aluminum thin-walled cylinder is 40 mm ID (inner diameter) by 50mm OD (outer diameter) and is subjected to an internal pressure, P. The material has stress allowable of 36x103 psi. Find the maxim
If F1 = 110N , F2 = 121N and F3 = 85N , determine the magnitude and coordinate direction angles of the resultant couple moment.
Neglecting the effect of the fillets and of stress concentrations, determine the smallest permissible diameters of the solid rods BC and CD. Use Shear Allowable=60 MPa.
Air flows steadily through an adiabatic non-ideal turbine, entering at 150 psia, 900°F and 350 ft/s and leaving at 20 psia, 300°F and 700 ft/s. Determine the power output of the turbine with
What are the velocity, thermal and concentration boundary layers? Under what conditions do they all have the same thickness?
Find the force required for the direct extrusion of commercially pure aluminum (1100-O) billet 8 in in diameter into a rod 2 inches in diameter.
A conveyor belt rises at a thirty degree angle. Its vertical hight measured from the ground is 20 ft (Sorry I can't seem to get the picture to work). A silo is discharging sand onto the begining of
What does the employee coaching process involve and what kinds of employees will benefit from the process? Describe the role of performance coaching in career patching.
A 2 lb brick slides off of a roof with a slope of tan^-1(3/4). That is about When the brick leaves the roof it is 30 ft off of the ground and has a velocity of 28.2 ft/s.
A paper plant replaces an aged and worn 150 ho engine with an efficiency of 90% with an updated model with an efficiency of 96%.
If the turbine exhausts to a condenser at 10 psia, what is the unit work extracted from the steam by the turbine? How much steam is needed to generate 500 MW of power?
Using both graphical and analytical methods in assessing the stability of the rock mass and calculate factors of safety for both the intact rock.
Water at 70 kPa and 100 C is compressed isentropically in a closed system to 5 MPa.Determine the final temperature of the water and work required ,in KJ/kg for this compression.
Steam enters an adiabatic turbine at 5 MPa and 450 C and leaves at a pressure of 1.4 MPa.Determine the work output of the turbine per unit mass of steam if the process is reversible.
5 kgm of water is at 15 C and is contained in a vertical cylinder by a frictionless piston of a mass such that the pressure of the water is 700 kPa.
In order to have the machine deliver 100,000 Nm/kg of air without any heat input, what is the exit air speed? What is the exit speed when the machine is idling?
10.0 kgm of air is contained in a cylinder by a free-floating, frictionless piston. Initially the air is at 27 C and occupies a volume of 2.87 m^3 and the piston is resting on a set of stops.
Estimate the extent of reaction (monomer conversion) necessary to produce a number average molecular weight of 70,000. What will be the polydispersity index of this polymer?
Two identical and CFR computers are placed in a redundant configuration. If the system reliability is to be 0.95 at 3000 operating hours, determine the corresponding MTTF for each computer.
The 50-lb package starts from rest, slides down the smooth ramp, and is stopped by the spring. The coefficient of static friction between the package and the ramp is μs=0.12.
A 0.12-ounce bullet hits at 2000 ft/s a suspended 10-lb block of wood and becomed embedded in it. The angle α through which the wires supporting the block rotate as a result of the impact is
The mass of the ball is m=2kg and the strings length is L=1m. The ball is released from rest in position 1 and swings to position 2, where ?=40°. Use conservation of energy to determine the mag
Consider a gas-turbine power plant whose pressure ratio is 8. The Isentropic efficiencies of the compressor and the turbine are 80%, and there is a regenerator with effectiveness 0f 70%.
The uniform slender has a mass of 15 kg. Determine the horizontal and vertical components of reaction on pin O, and the pin acceleration of the rod just after the cord is cut.
The plate is subjected to an axial force of 75 kN, The objective is to determine the maximum stress developed in the plate. Use Young's Modulus E=205 GPa.