At 11:00 AM on September 7, 2001, more than one million British school children jumped up and down for one minute to simulate an earthquake. (a) Find the energy stored in the children's bodies that was converted into internal energy in the ground and their bodies and propagated into the ground by seismic waves during the experiment. Assume that 1 200 000 children of average mass 30.0 kg jump 10 times each, raising their centers of mass by 27.0 cm each time and briefly resting between one jump and the next. (b) Of the energy that propagated into the ground, most produced high-frequency "microtremor" vibrations that were rapidly damped and not travel far. Assume 0.01% of the total energy was carried away by long-range seismic waves. The magnitude of an earthquake on the Richter scale is given by M = log E - 4.8 1.5 where E is the seismic wave energy in joules. According to this model, what is the magnitude of the demonstration quake? on the Richter scale

At 11:00 AM on September 7, 2001, more than one million British school children jumped up and down for one minute to simulate an earthquake. (a) Find the energy stored in the children's bodies that was converted into internal energy in the ground and their bodies and propagated into the ground by seismic waves during the experiment. Assume that 1 200 000 children of average mass 30.0 kg jump 10 times each, raising their centers of mass by 27.0 cm each time and briefly resting between one jump and the next. (b) Of the energy that propagated into the ground, most produced high-frequency "microtremor" vibrations that were rapidly damped and not travel far. Assume 0.01% of the total energy was carried away by long-range seismic waves. The magnitude of an earthquake on the Richter scale is given by M = log E - 4.8 1.5 where E is the seismic wave energy in joules. According to this model, what is the magnitude of the demonstration quake? on the Richter scale

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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