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A cylinder filled with oil is under pressure from a piston, as shown in the figure. The diameter d of the piston is 1.80 in. and the compressive force F is 3500 lb. The maximum allowable shear stress τallow in the wall of the cylinder is 5500 psi.
What is the minimum permissible thickness τmin of the cylinder wall? (See figure.)
A 1200 kg car moving at 20 km/h is accelerated at a constant rate of 4 m/s^2 up to a speed of 75 km/h. What are the forces (N) and total time (s) required?
the load is supported by the four 304 stainless steel wires that are connected to the rigid members ab and dc.
hydrogen forms an interstitial solid solution with bcc chromium. the atomic radius for chromium is 0.128nm. find the
1-2 an actual refrigerator absorbs 500 kj of heat from a sink at 250 k and reject 660 kj of heat to environment at 300
Heat loss from an insulated pipe, a standard schedule 40, 2-in. steel pipe (inside diameter 2.067 in. and wall thickness 0.154 in.) carrying steam is insulated with 2 in. of 85% magnesia covered in turn with 2 in. of cork. Estimate the heat loss p..
If punching takes place in 1/10 of a second and rpm of the flywheel varies from 160 to 140, determine the weight of the flywheel having radius of gyration K = 1m
the diameter of a cylindrical water tank is d0 and its height is h. the tank is filled with water which is open to the
In the limiting case of a very small sphere, what is the minimum value of the convection heat transfer coefficient expressed in terms of the sphere diameter and thermal conductivity of the air?
a cylindrical bar of radius 15 mm and length 100 mm is held at both ends. if at 30 degc no axial force exists in the
The system is at rest in the position shown, with the 12-lb collar A resting on the spring (k = 20 lb/ft), when a constant 30-lb force is applied to the cable. What is the velocity of the collar when it has risen 1 ft? The collar is attached to th..
a gas power cycle compresses air at 1 bar and 300 k state 1 through an adiabatic reversible compressor to 6 bar state
determine the internal normal force and shear force and the bending moment in the beam at points c and d. assume the
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