An inexpensive food and beverage container is fabricated from 25-mni-thick polystyrene (k = 0.023 w/m k) and has interior dimensions of 0.8 m times 0.6 m times 0.6 m. under conditions for which an inner surface temperature of approximately 2 degree c is maintained by an ice-water mixture and an outer surface temperature of 20 degree c is maintained by the ambient, what is the heat flux through the container wall? assuming negligible heat gain through the 0.8 m times 0.6 m base of the cooler, what is the total heal load for the prescribed conditions?

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.