the Taylor's tool equation for machining a steel shaft with high speed cutting tool at a feed of 0.2mm/minute and a depth of cut of 2mm is given by VT^n=C. where C and n are constants. the following V and T observations were noted. V(m/min). 25. 35. T(min). 90. 20. calculate n and c

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2