The intensity levels, J, and y, of two earthquakes measured on a seismograph can be compared by the formula logM, - My, where M, and My are the magnitudes of the two respective earthquakes, given by the Richter Scale. In August 2009, anearthquake of magnitude 4.9 hit the town of Tortuga. In March 2013, that same region experienced another earthquake, this time with a magnitude of 7.8. How many times greater was the intensity of the 2013 earthquake compared to the 2009 earthquake? Round your answer to the nearest whole number. The exposure index EI for a 35 millimeter camera is a measurement of the amount of light that hits the film. It is determined by the equation EI= log₂stop setting is 16 and the desired exposure time is 2 seconds. What will the the resulting exposure index be?help (numbers)(²). where f is the "1-stop setting on the camera, and it is the exposure time in seconds. Suppose the fPreview My AnswersSubmit Answers Show me anotherYou have attempted this problem 0 times. You have 3 attempts left before new version will be requested.

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College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section: Chapter Questions

Problem 29PT: A radiation safety officer is working with 112 grams of a radioactive substance. After 17 days,...

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The intensity levels, J, and y, of two earthquakes measured on a seismograph can be compared by the formula log M, - My, where M, and My are the magnitudes of the two respective earthquakes, given by the Richter Scale. In August 2009, an earthquake of magnitude 4.9 hit the town of Tortuga. In March 2013, that same region experienced another earthquake, this time with a magnitude of 7.8. How many times greater was the intensity of the 2013 earthquake compared to the 2009 earthquake? Round your answer to the nearest whole number.