San Francisco in 1906: seismographic reading of 50,119 millimeters 100 kilometers from the center. In problem use

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San Francisco in 1906: seismographic reading of 50,119 millimeters 100 kilometers from the center.

In problem use the following discussion: The Richter scale is one way of converting seismographic readings into numbers that provide an easy reference for measuring the magnitude M of an earthquake. All earthquakes are compared to a zero-level earthquake whose seismographic reading measures 0.001 millimeters at a distance of 100 kilometers from the epicenter. An earthquake whose seismographic reading measures x millimeters has magnitude M(x) given by

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where x0 = 10-3 is the reading of a zero-level earthquake the same distance from its epicenter. In problems, determine the magnitude of each earthquake.

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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