College Physics: A Strategic Approach (4th Edition)

4th Edition

ISBN: 9780134609034

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Textbook Question

Chapter 11, Problem 71GP

The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW.

a. on average, how much energy does one house use during each 24 h day?

b. If light energy to electric energy conversion using solar cells is 15% efficient, how many square miles of land must be covered with solar cells to supply the electric energy for 250,000 houses? Assume there is no cloud cover.

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Chapter 11, Problem 70GP

Chapter 11, Problem 72MSPP

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Chapter 11 Solutions

College Physics: A Strategic Approach (4th Edition)

Ch. 11 - Rub your hands together vigorously. What happens?...Ch. 11 - Describe the energy transfers and transformations...Ch. 11 - According to Table 11.4, cycling at 15 km/h...Ch. 11 - Prob. 4CQ Ch. 11 - Prob. 5CQ Ch. 11 - For most automobiles, the number of miles per...Ch. 11 - Prob. 8CQ Ch. 11 - Prob. 9CQ Ch. 11 - Prob. 10CQ Ch. 11 - Prob. 11CQ

Ch. 11 - Prob. 12CQ Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - Prob. 19CQ Ch. 11 - Prob. 20CQ Ch. 11 - Prob. 21CQ Ch. 11 - Prob. 22CQ Ch. 11 - Prob. 24CQ Ch. 11 - Prob. 25CQ Ch. 11 - Electric vehicles increase speed by using an...Ch. 11 - When the suns light hits the earth, the...Ch. 11 - Prob. 29CQ Ch. 11 - Prob. 30CQ Ch. 11 - Prob. 31CQ Ch. 11 - Prob. 32MCQ Ch. 11 - Prob. 33MCQ Ch. 11 - A person is walking on level ground at constant...Ch. 11 - A person walks 1 km, turns around, and runs back...Ch. 11 - 200 J of heat is added to two gases, each in a...Ch. 11 - Prob. 37MCQ Ch. 11 - A refrigerators freezer compartment is set at 10C;...Ch. 11 - A 10% efficient engine accelerates a 1500 kg car...Ch. 11 - Prob. 2P Ch. 11 - A typical photovoltaic cell delivers 4.0 103 W of...Ch. 11 - Prob. 4P Ch. 11 - Prob. 5P Ch. 11 - Prob. 6P Ch. 11 - In an average human, basic life processes require...Ch. 11 - Prob. 8P Ch. 11 - An energy bar contains 22 g of carbohydrates. How...Ch. 11 - Prob. 10P Ch. 11 - Prob. 11P Ch. 11 - Prob. 12P Ch. 11 - An energy bar contains 22 g of carbohydrates. If...Ch. 11 - Prob. 14P Ch. 11 - Prob. 15P Ch. 11 - Prob. 16P Ch. 11 - The label on a candy bar says 400 Calories....Ch. 11 - Prob. 18P Ch. 11 - A weightlifter curls a 30 kg bar, raising it each...Ch. 11 - Prob. 20P Ch. 11 - Prob. 21P Ch. 11 - Prob. 22P Ch. 11 - Suppose your body was able to use the chemical...Ch. 11 - Prob. 24P Ch. 11 - Prob. 25P Ch. 11 - Prob. 26P Ch. 11 - Prob. 27P Ch. 11 - The planet Mercurys surface temperature varies...Ch. 11 - A piece of metal at 100C has its Celsius...Ch. 11 - Prob. 30P Ch. 11 - 500 J of work are done on a system in a process...Ch. 11 - Prob. 32P Ch. 11 - 600 J of heat energy are transferred to a system...Ch. 11 - 10 J of heat are removed from a gas sample while...Ch. 11 - A heat engine extracts 55 kJ from the hot...Ch. 11 - A heat engine does 20 J of work while exhausting...Ch. 11 - A power plant running at 35% efficiency generates...Ch. 11 - A heat engine operating between energy reservoirs...Ch. 11 - A newly proposed device for generating electricity...Ch. 11 - Prob. 41P Ch. 11 - Prob. 42P Ch. 11 - Prob. 43P Ch. 11 - Prob. 44P Ch. 11 - A refrigerator takes in 20 J of work and exhausts...Ch. 11 - Air conditioners are rated by their coefficient of...Ch. 11 - 50 J of work are done on a refrigerator with a...Ch. 11 - Prob. 48P Ch. 11 - Find the maximum possible coefficient of...Ch. 11 - Prob. 50P Ch. 11 - Prob. 51P Ch. 11 - Prob. 52P Ch. 11 - Prob. 53P Ch. 11 - Prob. 55GP Ch. 11 - Prob. 56GP Ch. 11 - The record time for a Tour de France cyclist to...Ch. 11 - Championship swimmers take about 22 s and about 30...Ch. 11 - A 68 kg hiker walks at 5.0 km/h up a 7% slope....Ch. 11 - To make your workouts more productive, you can get...Ch. 11 - The resistance of an exercise bike is often...Ch. 11 - Prob. 62GP Ch. 11 - Prob. 63GP Ch. 11 - An engine does 10 J of work and exhausts 15 J of...Ch. 11 - An engine operating at maximum theoretical...Ch. 11 - An engineer claims to have measured the...Ch. 11 - A typical coal-fired power plant burns 300 metric...Ch. 11 - Prob. 68GP Ch. 11 - Air conditioners sold in the United States are...Ch. 11 - The surface waters of tropical oceans are at a...Ch. 11 - The light energy that falls on a square meter of...Ch. 11 - Prob. 72MSPP Ch. 11 - Prob. 73MSPP Ch. 11 - Prob. 74MSPP Ch. 11 - Prob. 75MSPP Ch. 11 - Prob. 76MSPP Ch. 11 - Prob. 77MSPP Ch. 11 - Prob. 78MSPP Ch. 11 - Prob. 79MSPP

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