Question #: 23 If a person who normally requires an average of 12,000 kJ (~ 3000 Cal) of food energy per day consumes 13,000 kJ per day, he will steadily gain weight. How much brisk walking per day is required to work off this extra 1000 kJ? Take the energy consumption rate when brisk walking (at 5 km/h) as 280 W. A. 30 minutes B. 60 minutes C. 40 minutes D. 50 minutes E. 70 minutes

Question #: 23 If a person who normally requires an average of 12,000 kJ (~ 3000 Cal) of food energy per day consumes 13,000 kJ per day, he will steadily gain weight. How much brisk walking per day is required to work off this extra 1000 kJ? Take the energy consumption rate when brisk walking (at 5 km/h) as 280 W. A. 30 minutes B. 60 minutes C. 40 minutes D. 50 minutes E. 70 minutes

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 22.10P: A heat pump has a coefficient of performance of 3.80 and operates with a power consumption of 7.03 ...

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