Math Problem Statement
A lot of important physical quantities , such as energy released in an earthquake , have very large ranges and thus logarithmic scales( the Richter Scale, in the case of an earthquake)are helpful in providing a way of making the numerical values of these measurements manageable.
Scientists have proven that an increase of 0,2 on the Richter Scale roughly doubles the amount of energy released by an earthquake. An increase of 1.0 gives a multiplying factor of 31.7 ( very close to 2`).
An earthquake of magnitude 3.0 on the Richter Scale releases an energy equivalent to 480kg of TNT. a) How much energy will be released by an earthquake of the following magnitudes
3.2 4.0 7.5
Calculate using logarithms
Solution
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Math Problem Analysis
Mathematical Concepts
Logarithms
Exponential Growth
Formulas
Energy calculation using logarithmic scales
Theorems
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Suitable Grade Level
Grades 10-12
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