Support with three reasons the decision to use a plastic material for the package in the following scenario. Situation: A client has hired Jose, a materials engineer, to develop a package for an item he has begun to market. The object needs to be mailed to customers within three days of being ordered.

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.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false