Consider an automobile with a mass of 5500lb m braking to a stop from a speed of

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Consider an automobile with a mass of 5500lb_m 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.

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Elementary Principles of Chemical Processes

ISBN: 978-0471720638

3rd Edition

Authors: Richard M. Felder, Ronald W. Rousseau

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Question Posted: Dec 27, 2010 04:52 AM

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Consider an automobile with a mass of 5500lb m braking to a stop from a speed of

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All kinetic energy dissipated by friction a Ek b mu ...View the full answer

Elementary Principles of Chemical Processes

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