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The energy released by an earthquake is related to the magnitude by an exponential function. The formula isEnergy = 25,000 × 31.6Magnitude.   The unit of energy in this equation is...

The half-life of cesium-137 is 30 years. Suppose that we start with 90 grams of cesium-137 in a storage pool. How many half-lives will it take for there to be 10 grams of cesium-137 in...

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