On a particular railway a train driver applies the brake of the train at a yellow signal a distance of 1.0 kilometre from a red signal where the train stops the maximum deceleration of the train is 1.1 metres per second square assuming uniform deceleration what is the maximum safe speed of the train at the yellow signal

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.