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Algebra 2 Resources

The loudness measured in decibels is defined by loudness= 10LogI/I0 , Where I is the intensity and I0 = 10-12 W/m2.   The human threshold for pain is 120 decibels. Instant perforation...

An earthquake of magnitude 7.7 occurred in 2001 in Gujarat, India. It was about 4900 times as strong as the greatest earthquake ever to hit Pennsylvania. What is the magnitude of the Pennsylvania...

An earthquake of a magnitude 9.1 occurred in 2004 in the Indian Ocean near Indonesia. It was bout 74,900 times as strong as the greatest earthquake ever to hit Texas. Find the magnitude of the Texas...

The foreman of a construction team puts up a sound barrier that reduces the intensity of the noise by 50%. By how many decibels is the noise reduced? Use the formula L=10LogI/I0 to measure the...