A plane area has its centroid C at point (2 cm, 4 cm). If the area of the plane is 100 cm2 and the moment of inertia, Iy is 2000 cm4, what is the centroidal moment of inertia, (Iy)Ca. 800cm4b. 1000cm4c. 1200cm4 d. 1600cm4

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.