Answer: Power P at distance 0.7 km is: 0.234 µW
Explanation:
We know that
inverse cube-power law.
Thus Power, P = c / d³
Substituting we have
15 µW = c / (175 m)³
c = (15 µW) x (175 m)³
Then finally Power value at 0.7 km.
Will be
P = c / d³
P = ((15 µW) x (175 m)³) / (700 m)³
= (15 µW) x (175 / 700)³
= (15 µW) x (0.25)³
=(15 µW) x (0.015625)
P = 0.234 µW
Power plants, water, dams, and electricity.
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