5. When unloaded, bars AB and AC are each 36 - in long and have a cross-sectional area of 2 in. Their modulus of elasticity is E = 1.6 x 10° psi. If the weight W = 12,000 Ib.(a) what are the changes in length of bars AB and AC, and (b) what is the vertical displacement of A.

Show work for both part of questions in simple and short way. (as fast as possible)

Lessons Discussed: Dynamics of Rigid Bodies, Erratic Motion, Rectilinear Motion, Curvilinear Motion, Motion of a Projectile: Normal and Tangential Components.   Reminder: Kindly show the complete step-by-step solution. Please make sure that your handwriting is understandable and the picture of the solution is clear. I will rate you with “like/upvote” after. I need the answer right away, thank you.   Given Problem: Please see the attached photo.

1. The development of thermodynamics since the 17th century, which was pioneered by the invention of the steam engine in England, and was followed by thermodynamic scientists such as Willian Rankine, Rudolph Clausius, and Lord Kelvin in the 19th century. explain what the findings or theories of the 3 inventors are! Please answer fast max 25-30.minutes thank u