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a block is subjected to a triaxial stress of 16 mpa on the YZ , - 11 mpa on the XZ face & 52 mpa along XY face. if these stresses produce a strain in the x - direction of 49.2 x 10^-6 m/m, what is the poisson's ratio of the block.
The DNA has N links; each link has a state in which it is closed with energy 0, and a state in which it is open with energy 'e'. The DNA can only unwind from the left; in other words, the sth link can open if all the links to the left (1, 2, 3,..
A cylindrical brass rod having a minimum tensile strength of 450 MPa (65,000 psi), a ductility of at least 13%EL, and a final diameter of 12.7 mm (0.50 in.) is desired. Some 19.0 mm (0.75 in.) diameter brass stock that has been cold worked 35% is ..
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
write down expressions for the normal strain and the true strain for the following situation 1 in a tensile test where
car a is traveling at va130kmh as it passes a police officer in car p but over the next 5 seconds the car uniformly
In Example 16.7, it turns out that the new process does not save one cent per unit. It only saves 0.3 cents per unit. What is the new BEP, and was it worth the expense to make this improvement?
the wheel in fig. 10-27 has eight equally spaced spokes and a radius of 30 cm. it is mounted on a fixed axle and is
The plate described in Problem 9.14 has been used in an experiment to determine the free convection heat transfer coefficient. At an instant of time when the plate temperature was 127°C, the time rate of change of this temperature..
a particle is moving along a straight line and has an acceleration of kv2 ms2 where v is the velocity of the particle.
Would the same costs be justified if 10 lives were saved? How much is a life worth? Do the earning capabilities of the people affected make a difference to this judgment?
The data listed below are claimed for power cycles operating between hot and cold reservoirs at 1000 K and 400 K, respectively. For each case determine whether such a cycle is in keeping with the first and second laws of thermodynamics.
a frictionless piston-cylinder apparatus contains saturated h2o at 212 degf where 80 of the volume is occupied by vapor
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