Air flows into a subsonic aircraft inlet with a velocity of 206 m/s. The static temperature and pressure of the air at the inflow section are 227 K and 22.4 kPa respectively. The inflow area is 0.56 m2. The outflow air has static temperature and pressure of 241 K and 26.4 kPa respectively, and its velocity is 118 m/s. Assuming steady quasi-1D flow across the inlet and exit sections, calculate:

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

What are the major differences between injection molding and extrusion?