The cost of electricity varies widely through the United States; $0.120/kWh is one typical value. At this
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(a) Leaving a 40.0-W porch light on for two weeks while you are on vacation,
(b) Making a piece of dark toast in 3.00 min with a 970-W toaster, and
(c) Drying a load of clothes in 40.0 min in a 5 200-W dryer.
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Related Book For
College Physics
ISBN: 978-0495113690
7th Edition
Authors: Raymond A. Serway, Jerry S. Faughn, Chris Vuille, Charles A. Bennett
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