Problem: Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans. When someone speaks to you in a normal tone of voice, the sound intensity at your ear is approximately 1.0x10-6 W/m2Part A What is the power delivered to your eardrum? Express your answer using two significant figures

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Power:

$\boxed{\begin{array}{rcl}\mathbf{P}& \mathbf{=}& \mathbf{IA}\\ & \mathbf{=}& \mathbf{I\pi }{\mathbf{r}}^{\mathbf{2}}\end{array}}$

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