Engineering, 07.10.2019 23:10 nooooooooooooooo412
The composite shaft consists of two steel pipes that are connected at flange b and securely attached to rigid walls at a and c. steel pipe (1) has an outside diameter of 7.75 in., a wall thickness of 2.74 in., and a length of l1 = 16 ft. steel pipe (2) has an outside diameter of 5.75 in., a wall thickness of 1.78 in., and a length of l2 = 22 ft. both pipes have a shear modulus of 13500 ksi. if a concentrated torque of 45 kip-ft is applied to flange b, determine: (a) the maximum shear stress magnitudes τ1, τ2 in pipes (1) and (2). (b) the rotation angle φb/a of flange b relative to support a.
Answers: 1
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
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Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 19:10
Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.
Answers: 2
The composite shaft consists of two steel pipes that are connected at flange b and securely attached...
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