Answer:
\[F=100\text{ }dynes.\] \[A=\text{ }.02\text{ }c{{m}^{2}}\] \[P=\frac{F}{A}=\frac{100}{0.02}dynes/c{{m}^{2}}\] \[=\frac{100\times 100}{2}dynes/c{{m}^{2}}=5000\text{ }dyne/c{{m}^{2}}\]
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