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Solve the following examples.a.What must be the temperature in Fahrenheit so that it will be twice its value in Celsius?b. A bridge is made from 20 m long iron rods. At temperature 18∘C, the distance between two rods in 0.4 cm. Up to what temperature will the bridge be in good shape?c. At 15∘C the height of Eifel tower is 324 m. If it is made of iron, what will be the increase in length in cm, at 30∘C?d. Two substances A and B have specific heats c and 2 c respectively. If A and B are given Q and 4Q amounts of heat respectively, the change in their temperatures is the same. If the mass of A is m, what is the mass of B?e. When a substance having mass 3 kg receives 600 cal of heat, its temperature increases by 10∘C. What is the specific heat of the substance?

Answer» Solve the following examples.



a.What must be the temperature in Fahrenheit so that it will be twice its value in Celsius?



b. A bridge is made from 20 m long iron rods. At temperature 18C, the distance between two rods in 0.4 cm. Up to what temperature will the bridge be in good shape?



c. At 15C the height of Eifel tower is 324 m. If it is made of iron, what will be the increase in length in cm, at 30C?



d. Two substances A and B have specific heats c and 2 c respectively. If A and B are given Q and 4Q amounts of heat respectively, the change in their temperatures is the same. If the mass of A is m, what is the mass of B?



e. When a substance having mass 3 kg receives 600 cal of heat, its temperature increases by 10C. What is the specific heat of the substance?


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