A weightlifter hoists a barbell above his head. The total length of the bar is 2 meters. Eighty kg of weight are added to each side, with the center of the weights lying .23 m from the outside tip of the bar on both sides. If the barbell was hoisted from the very center of the bar, what would be the torque applied on each side

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.