Two rods are made from materials that have different Young's moduli. The rods are constructed to have the same length and same cross-sectional area. The same force is hung from the end of each rod. The rod with the smaller Young's modulus will stretch more than the rod with the larger Young's modulus. Is this true or false?

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

It is really hard for me right know