In terms of saving energy, bicycling and walking are far more efficient means of transportation than is travel by automobile. For example, when riding at 10.0 mi/h, a cyclist uses food energy at a rate of about 400 kcal/h above what he would use if he were merely sitting still. (In exercise physiology, power is often measured in kcal/h rather than in watts. Here, 1 kcal = 1 nutritionist’s Calorie = 4 186 J.) Walking at 3.00 mi/h requires about 220 kcal/h. It is interesting to compare these values with the energy consumption required for travel by car. Gasoline yields about 1.30 × 108 J/gal. Find the fuel economy in equivalent miles per gallon for a person (a) walking and (b) bicycling.
Inquiry into Physics
Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)
Chemistry: An Atoms First Approach
Biology (MindTap Course List)
Introductory Chemistry: A Foundation
General Chemistry - Standalone book (MindTap Course List)
Fundamentals of Physical Geography
Understanding Nutrition (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
College Physics
Chemistry & Chemical Reactivity
Chemistry In Focus
An Introduction to Physical Science
Introduction to General, Organic and Biochemistry
Horizons: Exploring the Universe (MindTap Course List)
Chemistry for Today: General, Organic, and Biochemistry
Cardiopulmonary Anatomy & Physiology
Human Biology (MindTap Course List)
Physical Chemistry
Chemistry for Engineering Students
Human Heredity: Principles and Issues (MindTap Course List)
Chemistry: Principles and Reactions
Nutrition Through The Life Cycle
Biology: The Dynamic Science (MindTap Course List)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Physics for Scientists and Engineers
Organic Chemistry
Environmental Science (MindTap Course List)
Nutrition Through the Life Cycle (MindTap Course List)
General, Organic, and Biological Chemistry
Chemistry for Engineering Students
Environmental Science (MindTap Course List)
Chemistry In Focus
Organic And Biological Chemistry
Physics for Scientists and Engineers with Modern Physics
Physics for Scientists and Engineers: Foundations and Connections
Foundations of Astronomy (MindTap Course List)
Physics for Scientists and Engineers, Technology Update (No access codes included)
Organic Chemistry
Chemistry & Chemical Reactivity
Introductory Chemistry: An Active Learning Approach
Biology: The Unity and Diversity of Life (MindTap Course List)
Oceanography: An Invitation To Marine Science, Loose-leaf Versin