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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