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Calculate the stress state in the wall of a thin-walled spherical pressure vessel in terms of the internal pressure, p, the sphere radius, r, and the wall thickness, t.
A satellite is in Earth with an altitude at perigee of 550 km and an altitude at apogee of 5000 km.
a gas is contained in a vertical fractionless- cylinder device. the piston has a mass of 4 kg and cross sectional area
a 200 kg lander is approaching mars. assume a gravitational acceleration of 3.7 ms2. at the illustrated instant h 15 m
using the fact that the tension in the rope must remain constant in all sections of the rope calculate the total force
heating up water for your morning shower provides an excellent example of heat exchange and mixing that you control.
A 200 kg crate is to be supported by the rope and pulley arrangement shown. Determine the magnitude and direction fo the force P that must be exerted on the freee end of the rope to maintain equillibrium.
successive maximum displacements of a spring-mass-dashpot system shown by fig. 19.10 of vector mechanics for engineers
A cylindrical specimen of some metal alloy 8.7 mm in diameter is stressed in tension. A force of 1390 N produces an elastic reduction in specimen diameter of 0.0041 mm. Calculate the elastic modulus (in GPa) of this material if its Poisson's ratio is..
steam is to be condensed in the condenser of a steam power plant at a temperature of 60degc with cooling water from a
a 9-m-long steel e 200 gpa pipe column has an outside diameter of 220 mm and a wall thickness of 8 mm. the column is
A motor has a disk mounted on its shaft. The disk has a diameter of 1 foot and weighs 60 pounds. Starting from rest, the motor rotates at 350 rpm after 5 seconds. If the motor has a 92% efficiency, determine the input power in watts.
A turbine uses steam at 25MPa and 650°C at the turbine inlet to generate 17.5MW of power. The steam enters the turbine at a rate of 90000kg/h. A portion of the steam passing through the turbine is removed for the purposes of feedwater heating (Figure..
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