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A fountain runs on an electric motor and water pump. Estimate the pressure supplied by the pump and the electrical power needed by the motor.
A frictionless, incompressible steady flow field is given by V = 2xyi - y2j in arbitrary units. Let the density be ?0 = constant and neglect gravity.
Gamma titanium aluminide is subjected to a stress of 50000 psi. If the material is to be limited to 0.2% creep strain, how long can this material be used at 1100 degrees farenheit?
Determine (a) the amount of energy per unit surface area directed on the slab surface and (b) the thermocuple reading after 60 seconds has elapsed.
What is the yield strength. What is the tensile strength. What is the elastic strain at the yield point. What is the % elongation.
Design a controller which moves the height of the liquid level from 0 to 1 with: 1.) No steady-state error 2.) An overshoot less than 10% 3.) Settling time less than 4 s.
One way to manufacture transistors, which amplify electrical signals, is to diffuse impurity atoms into a semiconductor material such as silicon. Calculate the concentration gradient in atomic perce
A fatigue test is made with a mean stress of 17500 psi (120 MPa) and a stress amplitude of 24000 psi (165 MPa). Calculate (a) the maximum and minimum stresses, (b) the stress ratio.
A Ti-6A1-4V alloy contains an internal through crack of 1.90 mm. What is the highest stress (MPa) that this material can withstand without catastrophic failure?
What is the applied stress that will cause fracture if the component contains an internal crack 0.13 inches long? Assume Y=1.
Determine the critical crack length for a through crack contained within a thick plate of 7075-T751 aluminum alloy that is under uniaxial tension.
Evaluate these effects in terms of deleterious effects per kwh produced. Do the effects scale directly with the number of kwh produced?
Determine the maximum angle 'theta' for which equilibrium is possible. From the position determined in(a) calculate the force P required to rotate the bodycounterclockwise.
Determine the change in specific entropy of the refrigerant, in kJ/kg-K. Can this process be accomplished adiabatically?
The mixture is expanded isentropically from 5000 kPa and 600 C to 200 kPa. Calculate the work produced per unit mass of the mixture.
One way to manufacture transistors, which amplify electrical signals, is to diffuse impurity atoms into a semiconductor material such as silicon.
Its vibration isolator has a stiffness of k=7300 N/m. Compute the force transmitted to the foundation if the isolator damping ratio is (a) Zeta=0.05 and (b) Zeta=0.7.
Kinetic and potential energy effects are negligible. Determine: a. The apparent molecular weight of the mixture. b. The heat transfer per kmol of mixture flowing.
A slender bar of mass 12 kg and length of 1 m is pinned to its support at the bar center. Describe the motion of the bar (analytically) for all time t > 0. The bar is initially at rest at its equil
For this same component and alloy, what is the maximum allowable stress level when the critical internal crack length is 5.1 mm?
Applying gas model for air, determine at a steady state: a) the inles and exit velocities in m/s b) the mass flow rate in kg/s c) rate of entropy produced in kw/k.
Calculate the viscosity of the fluid. A capillary tube of 1.0 mm inner diameter is dipped in a beaker containing mercury at a temperature of 20°C.
The rod is in an air environment with T infinity = 23 degrees C and h= 50 W/m^2K and its other and extend into an insulating media. Determine the fin heat transfer rate.
Assuming the earth thermal conductivity is 1.2 W/m K and the surface temperature is 15 degress C estimate the heat loss from the pipe.