Answer :
The power generated by 1.4 m high waves is 1.69 kW.
We need to know about power to solve this problem. The power generated by waves can be determined as
P = 1/2 . μ . ω² . A² . v
where P is power, μ is the constant of wave media, ω is angular speed, A is amplitude and v is wave speed.
Power is proportional to amplitude squared. Hence
P ~ A²
From the question above, we know that
P1 = 8.5 kW
A1 = 1.4 m
A2 = 0.625 m
By using the ratio of power, we can write
P1 / P2 = A1² / A2²
8.5 / P2 = 1.4² / 0.625²
P = 1.69 kW
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