From the figure shown, find the allowable value of the force acting on the aluminum so that the maximum overall deformation of 2 mm or the stress in the materials will not be exceeded. Allowable stresses are; σ of bronze=120 MN/m^2 , σ of steel=140 MN/m^2 and σ of aluminum=80 MN/m^2 .

Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window