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Final Chapter 11: Temperature and Temperature-Related Variables in Engineering Exercise 1: A copper rod is 1.5 meters long at 20C. Calculate the change in length of the rod when the temperature increases to 100C. The coefficient of linear expansion for copper is 1.6 x 107 per C. Exercise 2: A steel beam must be installed in an environment where the temperature ranges from -20C to 50C. If the onginal length of the beam ts 10 meters at 20C, what will be the maximum and minimum lengths of the beam? The coefficient of linear expansion for steel is 1.2 x 10~* per *C. Chapter 12: Electric Current and Related Variables in Engineering Exercise 1: A circuit has a resistance of 10 ohms and is connected to a 12V battery. Calculate the current flowing through the circuit using Ohm's Law. Exercise 2: A wire carries a current of 54. If the resistance of the wire ts reduced to half of its original value, what will be the new current, assuming the voltage remains constant? Chapter 13: Energy and Power Exercise 1: A 1000W electric heater is used for 3 hours. Calculate the total energy consumed in kilowatt-hours (kWh). Exercise 2: A 60W light bulb is left on for 10 hours. How much energy does it use in joules