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Consider a metal that is subjected to cold working by rolling it to a lesser thickness or hammering it. (a) Would you expect the yield strength to be affected by this; and if so, should it increase of decrease? Justify your answer. (b) Answer the same question for ductility of the material. b. Explain how you can experimentally measure Poisson's ratio of isotropic materials. c. Explain why thermoplastic polymers typicallyexhibit highertoughness than thermosetting polymers.
air is compressed in a variable-load piston-cylinder device equipped with a paddle wheel. initially air is at 500kpa
A trapezoidal channel made out of brick, with bottom width 6ft and with bottom slope 0.001
Calculate spring stiffness for which the oscillator becomes unstable (gravity in the negative y direction) verify with SW Simulation (study 1)
A spur gear has 48 teeth with a diametral pitch of 8 and a pressure angle of 20 deg. The face width is 0.75 inches. If the gear is transmitting 25 HP at 250 rpm
what is the effect of quenching on the transition temperature and toughness for the mild steel ?
water flows through a 60 mm diameter tube that suddenly contracts to 30 mm diameter. the pressure drop across the
An uninsulated thin-wall pipe of 75 mm diameter is used to transport water at a temperature of 3?C to an outdoor cooling towe
In the position shown, the angular velocity and the angular acceleration of the rod AB are 4 rad/sec and 6 rad/sec2, respectively, both counterclockwise. For this instant calculate the velocity and acceleration of collar A. ( AB = 600 mm)
A light aircraft with a wing area of 200 ft2 has a lift coefficient of 0.4 and a drag coefficient of 0.05. the power required to maintain level flight is 66hp. determine the weight of the airplane. recall power is force in the direction of velo..
in a railroad switchyard a 50 ton freight car is sent at 7.4 mih toward a 27 ton car that is moving in the same
using excel find the value of the 95 confidence interval for a single-sample using the z variable and the students
a sealed cylindrical vessel of 60 cm diameter and 80 cm height contains 3.2 kg of a gas. the pressure measured with a
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