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The loudness L measured in decibels Db of a sound intensity measured in watts per...

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The loudness L measured in decibels Db of a sound intensity measured in watts per square meter is defined a L 1010g where fo 10 12 and is the least intense sound a human ear can hear Jessica is listening to soft music a sound intensity level of 10 9 on her computer while she does her homework Braylee is completing her homework while listening to very loud music at a sound intensity level of 10 3 on her headphones How many times louder is Braylee s music than Jessica s 1 3 times louder 3 times louder O 30 times louder O90 times louder

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