Use LRFD and select a W10 shape for an axially loaded column to meet the following specifications: - The length is 25 feet. - Both ends are pinned and there is bracing in the week direction at a point 10 feet from the top. - The service dead load is 150 kips, and the service live load is 320 kips.

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