13. An aluminium rod (p = 2.7 x10 kg/m) has a radius of 0.01m and an initial length of 2 m at a temperature of 20°C. Heat is added to raise its temperature to 90°C Its coefficient of linear expansion is a = 25 x 10 PC, the specific heat is cal = 900J/kg"C, and a thermal conductivity of k = 200J/s m°C. (a) What is the mass of the aluminium rod? (b) What is the amount of heat added to the rod? (c) What is the new length of the rod? (d) If we were to use this rod to transfer heat between two objects one side being at 20°C and the other side at 90°C, what would the rate of heat transfer be?

13. An aluminium rod (p = 2.7 x10 kg/m) has a radius of 0.01m and an initial length of 2 m at a temperature of 20°C. Heat is added to raise its temperature to 90°C Its coefficient of linear expansion is a = 25 x 10 PC, the specific heat is cal = 900J/kg"C, and a thermal conductivity of k = 200J/s m°C. (a) What is the mass of the aluminium rod? (b) What is the amount of heat added to the rod? (c) What is the new length of the rod? (d) If we were to use this rod to transfer heat between two objects one side being at 20°C and the other side at 90°C, what would the rate of heat transfer be?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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