The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to $0.258/kWh throughout the United States; $0.110/kWh is the average value. (a) At this average price, calculate the cost of leaving a 40-W porch light on for two weeks while you are on vacation? $ (b) At this average price, calculate the cost of making a piece of dark toast in 3.00 min with a 935-W toaster? $ (c) At this average price, calculate the cost of drying a load of clothes in 40.0 min in a 5.30 x 10³-W dryer? $
The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to $0.258/kWh throughout the United States; $0.110/kWh is the average value. (a) At this average price, calculate the cost of leaving a 40-W porch light on for two weeks while you are on vacation? $ (b) At this average price, calculate the cost of making a piece of dark toast in 3.00 min with a 935-W toaster? $ (c) At this average price, calculate the cost of drying a load of clothes in 40.0 min in a 5.30 x 10³-W dryer? $
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Transcribed Image Text:The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to $0.258/kWh throughout the United States; $0.110/kWh is the average value.
(a) At this average price, calculate the cost of leaving a 40-W porch light on for two weeks while you are on vacation?
$
(b) At this average price, calculate the cost of making a piece of dark toast in 3.00 min with a 935-W toaster?
$
(c) At this average price, calculate the cost of drying a load of clothes in 40.0 min in a 5.30 x 10³-W dryer?
$
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