Replace the loading system by an equivalent resultant force and couple moment acting at point O. Set F1 = (-80 i +200-300 kN and F2 = 1250 i - 150-200 l) N. (25 points) (4 points multiple-choice +21 points solution)
Fz
0.2 m
Fi
0.3 m
Select one
a. -100:- 60 -5k
O b. 601-40-5k
C 601-90,- 5
100+ 90 22​

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Determine the damped natural frequencies and the steady state response of a decoupled damped forced two degrees of freedom system. 10ä1 + 2q1 20q1 10 cos t; 10q2 +4q2 + 40q2 10 cos t

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?