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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.
Ten moles of ethylene (T_c=9.2 degrees C, P_c= 214.2kg/m^3) are to be compressed isothermally from their initial state (P = 21.7 bar,T = 25 ºC, and V = 1000 cm3/mol) to 100 cm3/mol. Estimate the work required to perform this operation on an ideal gas..
the electric power needs of a community are to be met by windmills with 10-m-diameter rotors. the windmills are to be
a rigid container with a volume of 0.17m3 is initially filled with steam at 180kpa 340c. it is colled to 90c. a at what
an air-standard cycle with variable specific heats is executed in a closed system and is composed of the following four
determine the minimum time needed for the plate temperature to reach 140°C.
a pot of 1kg of liquid water is heated on a mountain top where the atmospheric pressure is 0.8 bar. if the liquid water
a particle travels along the path y a bx cx2 where a b c are constants. if the speed of the particle is constant v
a 1200 mwe pressurized water reactor pwr with an overall thermal efficiency of 30 is designed to supply saturated steam
air is heated electrically in a constant-diameter tube in a steady-flow process. at the entrance the air has a velocity
1. what types of engineers e.g. civil construction mechanical industrial material science electrical etc. do you think
calculate the mass of the sun noting that the period of the earths orbit around the sun is 3.156 107 s and its distance
a non flow system undergoes a reversible process according to law p4.5v2 where pressure p is in bar specific volume v
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