Acylindrical rod of steel (e = 207 gpa, 30 × 10 6 psi) having a yield strength of 310 mpa (45,000 psi) is to be subjected to a load of 11,100 n (2500 lb f ). if the length of the rod is 500 mm (20.0 what must be the diameter to allow an elongation of 0.38 mm (0.015

Diameter of the cylinder will be

Explanation:

We have given young's modulus of steel  

Change in length

Length of rod

Load F = 11100 KN

Strain is given by

We know that young's modulus

So

We know that stress

So

So

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

cant without the picture! ?