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How many times louder is a 60 db sound than a 10 db sound

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1. How many times louder is a 60 dB sound than a 10 dB sound?( show your formula and steps for this problem)

2. How many times more energy is released by magnitude 5 earthquakes than by a magnitude 3 earthquake? (show your formula and steps to the solution of this mathematical question)

When you are 2 meters away from the speakers at a concert, the sound level is 140 db. How far away should you sit to reduce the level to 100 dB? (show your formula and steps to the solution of this problem)

Reference no: EM13873558

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