A 10.0%-efficient array of solar cells collects sunlight with an average intensity of 700W/m2. (a) In order to absorb energy at a rate of 100W, what total area must the array have? (b) If the array were to pay for itself in two years, what is its maximum cost of the array, assuming it operates for 10.0 h per day, earning 9.00¢ for each kilowatt-hour collected?

A 10.0%-efficient array of solar cells collects sunlight with an average intensity of 700W/m2. (a) In order to absorb energy at a rate of 100W, what total area must the array have? (b) If the array were to pay for itself in two years, what is its maximum cost of the array, assuming it operates for 10.0 h per day, earning 9.00¢ for each kilowatt-hour collected?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 77P: An outdoor WIFi unit for a picnic area has a 100-mW output and a range of about 30 m. What output...

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