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A cylindrical specimen of a brass alloy having a length of 60 mm (2.36 in.) must elongate only 10.8 mm (0.425 in.) when a tensile load of 50,000 N (11,240lbf) is applied. Under these circumstances, what must be the radius of the specimen? Consider this brass alloy to have the stress-strain behavior shown inFigure.
Design a cam to move a follower at a constant velocity of 100 mm/sec for 2 sec and then return to its starting position with a total cycle time of 3 sec. Hint: Use a two-segment polynomial to describe the follower displacement.
it is found that ozone reaction in water nearly follows first-order kinetics in ozone concentration decreases by 50 in
an electric 50 l hot water tank is initially full and has a temperature of 90 degrees c. water is drawn from the tank
a boom for a crane is shown in the horizontal position. if w1kn determine the force for supporting memebers ac ab ad
a double acting cylinder with a single rod must produce a thrust of 80kn and move out with a velocity of 3mms on the
to place a communications satellite into a geosynchronous orbit at an altitude of 22240 mi above the surface of the
One kilogram of nitrogen gas (N2) is undergoes an isothermal compression from 1 bar, 20C to a final pressure of 12 bar. During the process, the nitrogen transfers heat through a wall to a thermal reservoir with a temperature of 10C.
water flows in a 3 in diameter steel pipe schedule 40 that is 100 ft long with 120 gpm. there are six 90ordm elbow
The force F required to compress a spring a distance x is given by F - Fo = kx where k is the spring constant and Fo is the preload. Determine the work required to compress a spring, whose spring constant is k = 37 kN/m, a distance of 2 cm starting f..
air enters an evaporative cooler at 1 atmosphere 36degc and 20 percent relative humidity at a rate of 4 m3min and it
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?
A fire truck draws water from an open constant-level reservoir through a hose of 0.2 ft2 cross section. The water is discharged from the pump through another 0.2 ft2 hose to a surge tank pressurized to 120 psig with air at the top. The pump adds 970 ..
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