We have seen that the daily number of phone calls between two cities varies jointly as their

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We have seen that the daily number of phone calls between two cities varies jointly as their populations and inversely as the square of the distance between them. This model, used by telecommunication companies to estimate the line capacities needed among various cities, is called the gravity model. Compare the model to Newton’s formula for gravitation on page 450 and describe why the name gravity model is appropriate.

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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