An Explosion Is Detected 100 M Away from Ground-Zero,where the Intensity

An explosion is detected 100 m away from ground-zero,where the intensity is recorded to be 10⁹ W/m².About 5 s later,the sound wave is recorded 1.5 km away from ground-zero.What will its intensity by at that distance? (We ignore absorption losses in this calculation!)

A) 4.4 MW/m²
B) 14.1 MW/m²
C) 66.7 MW/m²
D) 200 MW/m²
E) 1000 MW/m²

Correct Answer:

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