Answered: 3.) Discuss the basic operation of a… | bartleby

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3.) Discuss the basic operation of a photodetector and an LED. Does each device rely
on generation or recombination of electron pairs? If it's generation, explain what
happens to the pair after they are created. If it's recombination, explain where the
electron/holes originated and what happens to them after they recombine.

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1. Please show all work neatly please and thank you
PHYSICAL SCIENCE PLEASE SIMPLIFY A factory has a ventilation system with a fan motor that has a 2½ horsepower motor. The fan must run continually, 24 hours a day, seven days a week. Assume a 30-day month and a cost of $0.16 per kilowatt-hour (kWh). What is the monthly cost to operate this system for the factory? (1 horsepower = 746 W)