A body moves with it position varying as R vector =(4t2−16t)i^ +3t^2 j^ meters. What is the y component of its velocity when the x component is zero Find also the position vector of the body at this instant. please give me a proper answer and i will mark you as brainliest or i will report ur answer if given wrong

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.