Calculate the total heat transfer Of a Sphere ball with the following conditions. Thermal conductivity (k) = 15.1 Specific heat = 480 Density = 8055 Diameter = 0.0254m a) Consider a laminar and turbulent air flow. b) Consider two cases: first, the sphere temperature is higher than the air temperature. Second, air temperature is higher than the sphere temperature. c) Consider a transient conduction heat transfer, and calculate the time required to cool the sphere in two different (air/oil) cooling medium for temperature difference 5°C. d) Define the convective boundary layer, and calculate the Nusselt Number. e) Provide a Simple sketch for the boundary layer of the temperature and velocity surrounding the sphere. f) Determine where the heat fluxes enter and leave the system. g) Write an expression for the heat transferred in the system. DO NOT SOLVE THE PROBLEM, GIVE THE EQUATIONS, AND THEORY THAT WOULD BE USED TO SOLVE THE PROBLEM!