A steel specimen is subjected to elastic stresses represented by the matrix σij=⎣2 −3 1
−3 4 5 1 5 −1]MPa
Given that E = 200 GPa,
ν = 0.3, calculate the corresponding strains

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false