250 m h Q2. (10 marks) A piece of metal of a long bridge is broken in two pieces of equal length when heated by 20°C. Wh
Posted: Mon Nov 15, 2021 4:15 pm
250 m h Q2. (10 marks) A piece of metal of a long bridge is broken in two pieces of equal length when heated by 20°C. When the pieces bend, they rise h = 2.74 m (Fig. 2). The coefficient of linear expansion of this metal is 12 x 10-6 (°C)? Find the initial length of this piece of metal. х Fig. 2