Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
16th Edition
ISBN: 9781259663895
Author: KRAUSKOPF, Konrad B.
Publisher: Mcgraw-hill Higher Education (us)
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 22E
What is the chief reason why the average fuel efficiency of cars in the United States is the lowest in the world?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Everett DeGolyer coined the term "energy slave" before the Great Depression to show that because of coal and oil, the United States led the world in per capita energy consumption. The average electrical consumption of an American residence 1500 kilowatt hours for a single family dwelling. If 10,460 kilojoules is the energy expended each day by a person and of that total 10,460 kilojoules, 80 % is used for basic metabolism, how many energy slaves does the typical American use?
Group of answer choices:
A. 10
B. 17
C. 85
D. 100
Which car is more fuel efficient, an European car that takes 7.2 liters of gas for each 100. km (that’s how gas mileage is reported in Europe) or a car that takes 30. MPG?
Efficiency of the European car in MPG =
Which is more efficient? E A (circle the correct answer)
What if you compare the European car to a car that takes 35. MPG?
Which is more efficient? E A (circle the correct answer)
The recommended daily caloric intake is 2000 calories (8,400,000J). This is because this is the same value for how much the average body loses to heat and work in a typical day (your change in energy is zero because you take in the same amount of energy you lose).
A) If you lose a total of 8,400,000J (Qout+W=total lost), but consume 1200 calories of food (5,000,000J), what would your change in energy be?
B) Assuming your change in energy is negative (hint-it should be), where does your body get the extra energy to maintain it's temperature?
Chapter 4 Solutions
Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
Ch. 4 - In 2100 the number of people in the world is...Ch. 4 - Arrange these sources in the order of the energy...Ch. 4 - Of the following, the energy source likely to be...Ch. 4 - Prob. 4MCCh. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Energy not ultimately derived from solar radiation...Ch. 4 - If present trends continue, an optimistic average...Ch. 4 - Prob. 9MCCh. 4 - Prob. 10MC
Ch. 4 - The radiation from an object at room temperature...Ch. 4 - The earths atmosphere is primarily heated by a....Ch. 4 - Prob. 13MCCh. 4 - Prob. 14MCCh. 4 - Prob. 15MCCh. 4 - Of the following fuels, the one that gives off the...Ch. 4 - Of the following fuels, the one that gives off the...Ch. 4 - Which of the following is not a fossil fuel? a....Ch. 4 - Prob. 19MCCh. 4 - The proportion of oil used by the United States...Ch. 4 - Most oil today is used for a. transportation b....Ch. 4 - Prob. 22MCCh. 4 - Prob. 23MCCh. 4 - The least polluting of the following fuels is a....Ch. 4 - Prob. 25MCCh. 4 - Prob. 26MCCh. 4 - The worst emitters of mercury, which damages the...Ch. 4 - Prob. 28MCCh. 4 - Of the following countries, the one that obtains...Ch. 4 - The proportion of electricity generated in the...Ch. 4 - In the relatively near future, the technology most...Ch. 4 - Prob. 32MCCh. 4 - Bright sunlight might deliver energy to an area of...Ch. 4 - The output of which of the following renewable...Ch. 4 - Prob. 35MCCh. 4 - Of the following technologies, the one that may...Ch. 4 - Of the following technologies, the one farthest...Ch. 4 - Biofuels based on which of the following seem to...Ch. 4 - Of the following, the strategy for coping with...Ch. 4 - Prob. 40MCCh. 4 - Population and Prosperity 1. What are the three...Ch. 4 - Energy Supply and Consumption 2. Even if the...Ch. 4 - The average rate of energy consumption per person...Ch. 4 - List the fossil fuels in the order in which they...Ch. 4 - Explain how sunlight is responsible for these...Ch. 4 - What energy sources cannot be traced to sunlight...Ch. 4 - Approximately what proportion of the worlds...Ch. 4 - (a) Give two reasons why global warming is causing...Ch. 4 - Once the polar ice sheets have melted beyond a...Ch. 4 - The oceans as well as the atmosphere are growing...Ch. 4 - When was the last time world temperatures were as...Ch. 4 - Every body of matter radiates light. What is...Ch. 4 - What is the nature of the greenhouse effect in the...Ch. 4 - Prob. 14ECh. 4 - Prob. 15ECh. 4 - (a) Why is deforestation so important in global...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Most of the worlds oil is used as a fuel for what...Ch. 4 - Prob. 20ECh. 4 - Prob. 21ECh. 4 - What is the chief reason why the average fuel...Ch. 4 - Prob. 23ECh. 4 - Why is natural gas rarely used as a vehicle fuel?Ch. 4 - What is methane hydrate? Where is it found and why...Ch. 4 - Prob. 26ECh. 4 - Prob. 27ECh. 4 - Prob. 28ECh. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - What is the basic difference between nuclear...Ch. 4 - What role does uranium play in nuclear energy...Ch. 4 - How does a nuclear power plant produce...Ch. 4 - Explain why no nuclear power plants were planned...Ch. 4 - Prob. 35ECh. 4 - Prob. 36ECh. 4 - Prob. 37ECh. 4 - Prob. 38ECh. 4 - Prob. 39ECh. 4 - Give several reasons why fossil-fuel energy is...Ch. 4 - Prob. 41ECh. 4 - Prob. 42ECh. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - (a) What major advantage does geothermal energy...Ch. 4 - Prob. 46ECh. 4 - Prob. 47ECh. 4 - What are the advantages and disadvantages of...Ch. 4 - Prob. 49ECh. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - A major obstacle to a worldwide agreement on...Ch. 4 - Explain the cap-and-trade system for controlling...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What are three common ways to save electricity to reduce electric bills?arrow_forwardSuppose that the average U.S. household uses 10100 kWh10100 kWh (kilowatt‑hours) of energy in a year. If the average rate of energy consumed by the house was instead diverted to lift a 1.80×103 kg car 11.3 m into the air, how long would it take? 1. car: ______ seconds? Using the same rate of energy consumption, how long would it take to lift a loaded Boeing 747 airplane, with a mass of 4.10×105 kg, to a cruising altitude of 9.92 km? 2. airplane: ______ seconds?arrow_forwardExplain how increasing entropy reduces the ability of energy to do work when you hammer a nail into a pieceof wood.arrow_forward
- A 150-pound hiker walks at 3 mph up a 5% slope. This incline is a ratio of the vertical distance and horizontal distance expressed as a percentage (for example, the vertical distance increases by 5 feet for every 100 feet horizontally). What metabolic power is needed for this hike? (Hint: Model her power as a sum of the power needed to walk on level ground and the power needed to raise her body the appropriate amount).arrow_forwardWhat formula relates entropy and the number of microstates? Who came up with this formula?arrow_forwardA power plant produces 1 GW of electricity, at an efficiency of 40% (typical of today's coal-fired plants). Question: At what rate does this plant expel waste heat into its environmentarrow_forward
- An automobile engine operates with an overall efficiency of 12%. How much energy in gallons of gasoline is delivered as waste heat for each 10 gallons of fuel burned?arrow_forwardA car operates at 12 percent efficiency. For every 10 gallons of gasoline, how. much is wasted as heat?arrow_forwardA proposed ocean thermal energy conversion (OTEC) system is a heat engine that would operate between warm water (25 degrees C) at the ocean's surface and cooler water (5 degrees C) 1,000 m below the surface. What is the maximum possible efficiency of the system?arrow_forward
- A blender has an efficiency of 72%. What happened to the other 28%?arrow_forwardFirewood is a traditional biomass energy source. To heat a 1500 sq.ft. house in Canada we need about 14,500 kWh of energy per year. If the energy density of firewood is 4.5 kWh/kg, and the energy efficiency of your wood furnace is 60%, about how much firewood would you need to heat such house for one year? Question 2 options: 2400 kg 9521 kg 5370 kg 3762 kgarrow_forwardIf you could use any source of energy for heating your food, which one would you use and why?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY