imagine you are a engineer designing a new cell phone. describe the criteria you would use, along with possible constraints and trade offs in the design process

the answer is b & c i believe : )

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

you need to have a picture of the atom that way we can answer it

answerleaving cheese out to get moldy;