How would an engineer know if a product were feasible? A. The design has already been proven to keep the cost of the project down
B. The design fits into the engineers original vision
C. The design has never been developed before
D. The design meets all of the criteria and limitations designated by the project

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

What precautions should you take to prevent injuries when dealing with heavy loads?

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