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2/106 The unstretched length of the spring is b. Determine the force which the spring exerts on point B of the space frame if b = 0.3 m. The magnitude of the spring force is the spring constant k multiplied by the de?ection (lengthening or shortening) of the spring.
z
1.5b b
B
vertical side OB of the parallelepiped. Express F as its magnitude times the appropriate unit vector and determine its x-, y-, and z-scalar components.
A water pump is driven by a steam turbine. The steam at the inlet is at 10 bars and 280 C, and leaves the turbine at 1.5 bars. Saturated liquid water enters the pump at 20 C at 100,000 kg/hr, and the water exits at 100 bars.
As shown, a 3.1-lb ball is suspended at point D inside a box with dimensions w=9.50 ft, d=6.50 ft, and h=4.50 ft. The ball is held in place by three cables anchored at points A,B, and C on the surface of the box.
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If the sphere is made of steel (E=210 Gpa, poison ratio=0.29 ) and the internal pressure is 10MPa, the radius of the sphere is 0.5m, and the wall thickness is 10mm, what is the stress state in MPa? What is the elastic strain energy per unit volume in..
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