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A thin walled tube with closed ends has an inside radius of 80mm and a wall thickness of 6 mm. It is subjected to an internal pressure of 20 MPa, a torque of 60 kN*m, and an axial compressive force of 200 kN. Determine the maximum normal stress and the maximum shear stress.
the thermal efficiency of a heat engine is 40 and produces 100kw. please determine the heat transfer rate to this
a circular tube of outer diameter 5 cm and inner diameter 4 cm is used to convey hot fluid. the inner surface of the
A piston-cylinder device is insulated and contains 0.005 m3 of saturated liquid water at a constant pressure of l50 kPa. An electric resistance heater inside the cylinder is now turned on, and 1800 kJ of energy is transferred to the steam.
a round disk is used to exactly cover the drain in the bottom of a 10 ft deep swimming pool. the diameter of the disk
steam at 240 degree c and 700 kpa enters an open feedwater healer operating at steady state with a mass flow rate of
a gas mixture consists of o2 and n2. the ratio of the mole numbers of nitrogen to oxygen is 31. this mixture is heated
neglecting the effect of the fillets and of stress concentrations determine the smallest permissible diameters of the
the water pressure in the mains of a city at a particular location is 350kpa gage. determine if this main can serve
a flow of 30.5 kgmin of water from a hot water tank at 51oc is mixed with a 29.1 kgmin flow of 20oc water. determine
descriptive questions - give brief answers in words. no calculations are required. you may write your answers in point
question in an em wave traveling north the e field oscillates vertically and has a frequency of 85.0 khz and an rms
chilled water enters a thin shelled 4 cm diameter 200 m long pipe at 7 deg. celsius at a rate of 0.98 kgsec and leaves
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