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A steel tube has a mean diameter of 100mm and a thickness of 3 mm. Calculate the torque which can be transmitted by the tube with a factor of safety of 2.25 if the criterion of failure is (a) maximum shear stress; (b) maximum strain energy; (c) maximum shear strain energy. The elastic limit of the steel in tension is 225 MN/m2 and Poisson's ratio v is 0.3.
Half a kilogram of nitrogen, initially at 350K and 200Kpa is compressed through a poly tropic process with pv^1.4= constant. If the final temperature is measured to be 400K, find the work in the process.
the bending moment at a point in a beam of elastic modulus e is m. determine the ration of the maximum stress for a
A piston-cylinder system initially contains an ideal gas at {State 1} After an isothermal expansion process, the pressure of the gas in the cylinder drops to P 2bar 2? Please draw a schematic of the process 1-2 on a
in an air-conditioning installation a flow rate of 1750 cfm of air at 50 degree ferenheit is required. a smooth sheet
An ideal Rankine cycle uses water as its working fluid. The mass flow rate of water through the cycle is 150 kg/s. saturated vapour enters the turbine at 15 MPa and saturated liquid enters the pump at 10 kPa. Cooling water passes through the condense..
an air standard diesel cycle has a compression ratio of 18.2. air is at 80degreef and 14.7psi at the beginning of the
We are concerned about carbon content in steel. It has a direct effect on the yield and tensile strength of what is formed in what is called a hot rolled condition directly from the steel production facility. 1010 steel has yield strength of 180MPa, ..
Find constants a, b and c such that the vector field defined by
a golfer wants to hit a ball a horizontal distance of 130 meters with a maximum height of 20 meters above his tee-off
a a 10-mm-diameter brinell hardness indenter produced an indentation 1.62 mm in diameter in a steel alloy when a load
In the idealized model attached shown, m = 15 kg, k = 135 N/m, and the viscous damping ratio is 0.15. Assume that an external harmonic force F(t) = 15 cos 4 t acts on the system with F0=15 N and forcing frequency of 4 rad/s.
1.what are the four standard types of projections?nbsp2.what are the advantages of using grid paper for
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