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An 8 000-kg aluminum flagpole 100-m long is heated by the sun from a temperature of 10°C to 20°C. Find the work done in Joules by the aluminum if the linear expansion coefficient is 24 x 10-6°C)-1. (The density of aluminum is 2.7 x103 kg/m3)

An 8 000-kg aluminum flagpole 100-m long is heated by the sun from a temperature of 10°C to 20°C. Find the work done in Joules by the aluminum if the linear expansion coefficient is 24 x 10-6°C)-1. (The density of aluminum is 2.7 x103 kg/m3)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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An 8 000-kg aluminum flagpole 100-m long is heated by the sun from a temperature of 10°C to 20°C. Find the work done in Joules by the aluminum if the linear expansion coefficient is 24 x 10-6 (°C)-1. (The density of aluminum is 2.7 x103 kg/m³) Select one:
Transcribed Image Text:An 8 000-kg aluminum flagpole 100-m long is heated by the sun from a temperature of 10°C to 20°C. Find the work done in Joules by the aluminum if the linear expansion coefficient is 24 x 10-6 (°C)-1. (The density of aluminum is 2.7 x103 kg/m³) Select one:
An 800-MW electric power plant has an efficiency of 30%. It loses its waste heat in large cooling towers. Approximately how much waste heat (in MJ) is discharged to the atmosphere per second? Select one: O a. 1 900 O b. 560 O c. 240 O d. 1 200 O e. 800
Transcribed Image Text:An 800-MW electric power plant has an efficiency of 30%. It loses its waste heat in large cooling towers. Approximately how much waste heat (in MJ) is discharged to the atmosphere per second? Select one: O a. 1 900 O b. 560 O c. 240 O d. 1 200 O e. 800
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