A steel bar is welded between two rigid surfaces as shown in the picture. The temperature of the bar is then increased by 27°C. The Young's modulus of the bar is 200,000N/mm², its coefficient of thermal expansion is 1.2 10-5 °C-1 and its cross sectional area is 52mm². Determine the total force in Newtons applied by the bar onto the right hand side surface (+ to the right, to the left). Round off the value to the nearest Newton.