Consider an automobile with a mass of 5500 lbm braking to a stop from a speed of 55 miles/h.(a) How much energy (Btu) is dissipated as heat by the friction of the braking process?(b) Suppose that throughout the United States, 300,000,000 such braking processes occur in the course of a given day. Calculate the average rate (megawatts) at which energy is being dissipated by the resulting friction.(c) Find a source of information on the average per-capita consumption of electricity (kW) in the United States, France, and India. Roughly how many people in each country would have their electricity needs met if the braking energy calculated in Part (b) could be recovered and used to provide electricity? Show your calculations and identify your information source.
Consider an automobile with a mass of 5500 lbm braking to a stop from a speed of 55 miles/h.(a) How much energy (Btu) is dissipated as heat by the friction of the braking process?(b) Suppose that throughout the United States, 300,000,000 such braking processes occur in the course of a given day. Calculate the average rate (megawatts) at which energy is being dissipated by the resulting friction.(c) Find a source of information on the average per-capita consumption of electricity (kW) in the United States, France, and India. Roughly how many people in each country would have their electricity needs met if the braking energy calculated in Part (b) could be recovered and used to provide electricity? Show your calculations and identify your information source.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Consider an automobile with a mass of 5500 lbm braking to a stop from a speed of 55 miles/h.
(a) How much energy (Btu) is dissipated as heat by the friction of the braking process?
(b) Suppose that throughout the United States, 300,000,000 such braking processes occur in the course of a given day. Calculate the average rate (megawatts) at which energy is being dissipated by the resulting friction.
(c) Find a source of information on the average per-capita consumption of electricity (kW) in the United States, France, and India. Roughly how many people in each country would have their electricity needs met if the braking energy calculated in Part (b) could be recovered and used to provide electricity? Show your calculations and identify your information source.
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