The solid L2 Tool Steel shaft AD has a diameter of 30 mm and is supported by smooth bearings at A and D. Coupled to the shaft is themotorwhichdelivers 10 kW of power to the shaft while it is turning at 40 revolutionspersecond. If gear B removes 2 kW and gear C removes 5 kW, determine the absolute maximum shear stress in the shaft.

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