1. Railroad rails made of steel, each 20 meters long are laid end to end at 30°C. If the daytime temperature reaches 40°C, what gap must be maintained between successive rails to prevent bending? 2. Two thin rods of the same diameter and made of brass and of steel are to support a frame horizontally. The brass rod is 0.6 m. How long should the steel rod be so that they will have the same length when the temperature changes from 25°C to 36°C?

1. Railroad rails made of steel, each 20 meters long are laid end to end at 30°C. If the daytime temperature reaches 40°C, what gap must be maintained between successive rails to prevent bending? 2. Two thin rods of the same diameter and made of brass and of steel are to support a frame horizontally. The brass rod is 0.6 m. How long should the steel rod be so that they will have the same length when the temperature changes from 25°C to 36°C?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter10: Thermal Physics

Section: Chapter Questions

Problem 24P: The Trans-Alaskan pipeline is 1 300 km long, reaching from Prudhoe Bay to the port of Valdez, and is...

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A hollow aluminum cylinder 20.0 cm deep has an internal capacity of 2.000 L at 20.0C. It is completely filled with turpentine at 20.0C. The turpentine and the aluminum cylinder are then slowly warmed together to 80.0C. (a) How much turpentine overflows? (b) What is the volume of the turpentine remaining in the cylinder at 80.0C? (c) If the combination with this amount of turpentine is then cooled back to 20.0C, how far below the cylinders rim does the turpentines surface recede?
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