Solve the problem with conditions if a wall has inner and outer surface temperatures of 16 and 6 c, respectively. the interior and exterior air temperatures are 20 and 5 c, respectively. the inner and outer convection heat transfer coefficients are 5 and 20 w/m2 k, respectively. calculate the heat flux from the interior air to the wall, from the wall to the exterior air, and from the wall to the interior air. is the wall under steady-state conditions?

Heat flux is 20 W/m^2

Explanation:

Heat flux (Q) is computed as

where h is heat transfer coefficient and ΔT is the difference between body's temperature

From the interior air to the inner wall

From the the outer wall to the exterior air

The wall is under steady-state condition because heat flux is constant  

the correct answer is c.stops after infancy and childhood.

myelin is the substance of the central nervous system (cns) that insulates nerve cell axons to increase the speed at which nerve impulse travels. myelination is a process of myelin formation. this process occurs postnatally, begins in the embryo during the midst of early development and finishes after birth.