Consider an automobile with a mass of 5500lb m braking to a stop from a speed of
Question:
Consider an automobile with a mass of 5500lbm 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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Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-0471720638
3rd Edition
Authors: Richard M. Felder, Ronald W. Rousseau
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