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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? |
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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 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? |
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