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Problem 2: Comparing Lightbulbs (38 points) You're at the hardware store buying a lightbulb for a lamp that you use for 5 hours per
Problem 2: Comparing Lightbulbs (38 points) You're at the hardware store buying a lightbulb for a lamp that you use for 5 hours per day (6 pm 11 pm). You're considering three options: - Type Incandescent Power Rating Efficiency Cost per bulb Lifetime 100 W 3% $1.00 1.5 years 8% $3.00 6 years 14 W 20% $6.00 8 years Compact Fluorescent (CFL) 20 W LED
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Fundamentals of Heat and Mass Transfer
Authors: Incropera, Dewitt, Bergman, Lavine
6th Edition
978-0470055540, 471457280, 470881453, 470055545, 978-0470881453, 978-0471457282
