Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the bottom) welded together. In which direction the strip will bend if you put it over a flame if a = 12 × 10 -6 /C ofor iron, and a = 17x 10 -6/C • for copper

Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the bottom) welded together. In which direction the strip will bend if you put it over a flame if a = 12 × 10 -6 /C ofor iron, and a = 17x 10 -6/C • for copper

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 94P: A firewalker runs across a bed of hot coals without sustaining burns. Calculate the heat transferred...

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the bottom) welded together. In which
direction the strip will bend if you put it over a flame if a = 12 × 10 -6 /C ofor iron, and a = 17x 10 -6/C • for copper

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(II) A hot iron horseshoe (mass =0.40kg),=0.40kg), just forged(Fig. 28),28), is dropped into 1.05 LL of water in a 0.30 -kg iron potinitially at 20.0∘C . Ifthe final equilibriumtemperature is 25.0∘Cestimate the initialtemperature of thehot horseshoe.