A 60 W incandescent bulb costs $0.36 and lasts 1,000 hr; a 14 W CFL bulb costs $4 and lasts 10,000 hr; and a 9.5 W LED bulb costs $13 and lasts for 25,000 hr. At $0.15/kWh, A. Find the cost of using incandescent bulbs for 25,000 hr. (Note: the cost includes the initial cost of the bulbs plus the energy used for 25,000 hr.) B. Find the cost of using CFLS for 25,000 hr. How much money is saved over incandescent bulbs? C. Find the cost of using LEDS for 25,000 hr. How much money is saved over incandescent bulbs? 9.3

A 60 W incandescent bulb costs $0.36 and lasts 1,000 hr; a 14 W CFL bulb costs $4 and lasts 10,000 hr; and a 9.5 W LED bulb costs $13 and lasts for 25,000 hr. At $0.15/kWh, A. Find the cost of using incandescent bulbs for 25,000 hr. (Note: the cost includes the initial cost of the bulbs plus the energy used for 25,000 hr.) B. Find the cost of using CFLS for 25,000 hr. How much money is saved over incandescent bulbs? C. Find the cost of using LEDS for 25,000 hr. How much money is saved over incandescent bulbs? 9.3

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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