Solve the problem.The loudness of a sound is measured in decibels (dB). The loudness L of a sound is related to its intensity I by the equation 
where I0 = 10-12 watts per square meter (W/m2) is the intensity of the faintest sound the human ear can detect. Find the intensity of a 70 dB sound.
A. I = 10-5 W/m2
B. I = 1019 W/m2
C. I = -510 W/m2
D. I = 10688 W/m2
Answer: A
Mathematics
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