A metal rod is 30.25 cm long at 25°C and 30.30 cm long at 100 C. Compute the approximate coefficient of linear expansion of the rod.

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Solve the following problems.
1. A metal rod is 30.25 cm long at 25°C and 30.30 cm long at 100°C. Compute the
approximate coefficient of linear expansion of the rod.
2. A 5 m long cylindrical copper pipe has an outer diameter of 3 cm and inside
diameter of 2.5 cm initially at 20°c. Compute the approximate change in its surface
area if it is to be heated at a temperature of 85°C.
3. What is the final volume of an aluminum circular rod 1.5 m long and with a
diameter of 1.5 cm if it it to be heated from 17°C to 140c?
Transcribed Image Text:Solve the following problems. 1. A metal rod is 30.25 cm long at 25°C and 30.30 cm long at 100°C. Compute the approximate coefficient of linear expansion of the rod. 2. A 5 m long cylindrical copper pipe has an outer diameter of 3 cm and inside diameter of 2.5 cm initially at 20°c. Compute the approximate change in its surface area if it is to be heated at a temperature of 85°C. 3. What is the final volume of an aluminum circular rod 1.5 m long and with a diameter of 1.5 cm if it it to be heated from 17°C to 140c?
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