The net force of a pair of balanced forces is zero
For this case we have that by definition, the average power is given by:

Where:
W: It is the work done
t: It's time
According to the data we have to:

So:

Answer:

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Answer:
The industry standard life span is about 25 to 30 years, and that means that some panels installed at the early end of the current boom aren't long from being retired is the operating life time of a PV module .