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A high-strength cast-iron bar 8 in. in diameter is being turned on a lathe at a depth of cut d=0.050 in. The lathe is equipped with a 15-hp electric motor and has a mechanical efficiency of 80%. The spindle is 500 rpm. Estimate the maximum feed that can be used before the lathe begins to stall.
A shaft with a 2-inch outer diameter must deliver 5000 ft-lbs of torque. The shaft must be hollow and must simultaneously carry hydraulic fluid at an internal pressure of 30,000 psi. Assuming the shaft is closed-ended, and using the von Mises yield c..
a long wire of diameter d 1 mm is submerged in an oil bath of temperature tinfin 25 c. the wire has an electrical
the total pressure of air entering a single-stage centrifugal compressor is 1.013 bar and the total t is 288 k. the
Determine the radiation per unit area in the bandwidth of 1 micrometer to 2.5 micrometer in W/m^2 from a balck body at 2500 K.
air flows steadily through an adiabatic non-ideal turbine entering at 150 psia 900degf and 350 fts and leaving at 20
helium gas enters a nozzle whose isentropic efficiency is 88 percent with a low velocity and it exits at 15.3 psia 160f
a rigid insulated container has two rooms seperated by a membrane. room a contains 1 kg air at 200 degrees celsius and
a concrete slab measuring 0.3m x 4m x 6m initially at 298 k is exposed to the sun for several hours after which its
a diesel engine has a state before compression of 95 kpa 290 k a peak pressure of 6000 kpa and a maximum temperature of
a force acts at the origin of a coordinate system in a direction defined by the angles qx 65.0deg and qz 69.7deg.
saturated vapor steam at 5 psia eneters an adiabatic heat exchanger and leaves as saturated liquid at 5 psia. the steam
What is the kinetic energy (in Btu) associated with a 300 gm hockey puck flying at 120 mph? Assuming an ideal gas, calculate the specific volume in the appropriate units for: Calculate the specific enthalpy change (in the appropriate units) for the f..
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