Heat is lost through the glass pane of a window. The thickness of the glass is 3 mm, and the window is 0.9 m by 1.8 m. The thermal conductivity of glass is 0.8 W/mK. If the temperature difference across the glass is 17 K, what is the total heat transfer through the pane of glass? Give your answer in Watts to the nearest integer. The velocity components for idealised flow along a right angled wall is given by u = 4 x m/s, v = -4 y m/s, w = 0 m/s. Find the vorticity magnitude at position x=(1,2,1) cm. Give your answer to two decimal places.