Determine displacement (in) of a 1.28 in diameter steel bar, which is 50 ft long under a force of 21,672 lb if elasticity modulus is 30 x 10^6 psi. make sure you do not round up your answer to less than 4 significant (non-zero) figures.

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false

Afan that can provide air speeds up to 60 m/s is to be used in a low-speed wind tunnel with atmospheric air at 35 c. if one wishes to use the wind tunnel to study flat-plate boundary layer behavior up to reynolds numbes of re 10, what is the minimum plate length that should be used? at what distance from the leading edge would transition occur if the critical reynolds nurnber were rer,e = 5 × 105?