Assume your utility charges 5.5 cents per kWh, remember there are 100 cents in 1 dollar and 365 days in 1 year. With this info and the "how many lumens" chart, together with the data given in the tables on the next page you now have all the information to calculate your answers. Location Lumens per bulb Watts per bulb
Assume your utility charges 5.5 cents per kWh, remember there are 100 cents in 1 dollar and 365 days in 1 year. With this info and the "how many lumens" chart, together with the data given in the tables on the next page you now have all the information to calculate your answers. Location Lumens per bulb Watts per bulb
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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| Brightness | 250+ | 450+ | 800+ | 1100+ | 1600+ | |
| Standard | 25W | 40W | 60W | 75W | 100W |
Assume your utility charges 5.5 cents per kWh, remember there are 100 cents in 1 dollar and 365 days in 1 year. With this info and the "how many lumens" chart, together with the data given in the tables on the next page you now have all the information to calculate your answers.
| Location |
Lumens per bulb |
Watts per bulb |
Total # of bulbs |
Total Watts |
Use: hours per day |
kWh per day |
Total kWh for 1 year |
Cost per 1 year |
Cost per 10 years |
|
| Kitchen overhead | 800 | 60 | 6 | 360 | 3 | (360(3))/1000=1.08 | 394.2 | $21.69 | $216.90 | |
| Living room | 1,600 | 100 | 3 | 300 | 4 | (300(4))/1000=1.2 | 438 | |||
| Dining Room | 800 | 5 | 2 |
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