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A W12×30 structural steel beam is simply supported on a span of 12 ft.
It is subjected to a uniformly distributed load of 675 lb/ft and a concentrated load of 14,000 lb at midspan. The allowable deflection is 1 360 of the span. Is the beam satisfactory?
an adiabatic gas turbine expands air at 1300 kpa and 500oc to 100 kpa and 127oc. air enters the turbine through a
Neglecting radiation and assuming steady-state conditions, calculate the surface temperature of the droplet if the ambient air temperature is 300 K. The latent heat of vaporization is 8.42 X 105 J/kg.
superheated steam at 8 mpa and 480oc leaves the steam generator of a vapor power plant. heat transfer and frictional
If it hovers over the land in a fixed position and then releases 50 kg> s of water at 10 m> s, measured relative to the helicopter, determine the initial upward acceleration the helicopter experiences as the water is being released.
air contained in a piston-cylinder assembly contains air initially at 2 bar 300 k and a volume of 2 m3. the air
the wet feed material to a continuous dryer contains 50 wt water on a wet basis and is dried to 27 wt by countercurrent
Using the hydrostatic law dp/dz = -(rho)g and the ideal gas law p = (rho)RT, show that if the temperature of the atmosphere varies with height as T(z) = T_o - Bz, then the atmospheric pressure varies with height as p(z) = p_o(1-(Bz/T_o))^(g/(BR))
your boss asks you to calculate the flow through a natural-gas pipeline. since it is 26 in. in diameter it is
Explain how hindsight bias could affect the accident or incident investigation process. Describe the general process of the CAST technique
Air, initially at 220 kPa and 450 K undergoes a polytropic state change to 374 kPa and 495 K. What is the polytropic exponent of this process? Saturated water vapor is contained in a rigid container. Heat is then added until the pressure and temperat..
According to Equations (20.10) and (20.11), yielding is possible under a state of pure hydrostatic tension, σH. Find that value of σ H according to both equations if the tensile and compressive yield strengths are 80 and 100 MPa, respectively.
a the dynamic error in a temperature measurement using a thermocouple is 70 at 3 s after an input step change in
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