Why do engineers play a variety of roles in the engineering process? They are part of a team. They need to act as both scientists and engineers when working on a project. They have to brainstorm, build, and design all of their projects alone. They have to be cyclical in their process.

1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction