Question

The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 60.0-W porch light on for 2 weeks while you are on vacation. $ 2.42 (1) Making a piece of dark toast in 3.00 min with a 870-W toaster. (Give your answer to at least three decimal places.) 0.00522 X Your response is off by a multiple oftene (c) Drying a load of clothes in 40.0 min in a 5,100 W dryer. (Give your answer to at least one decimal place.) 0.408 Your response is off by a multiple oftene

Answer 1

his aj Cost = Es pt ai 10.060) (2 x 168.9 (0.120) cost 2.4192 Cost = $2.427 i (6) Cooz: (6.870) ( 3* to) (0120) · Cost = $10.00522 - 10.522] ¢ Is Coste 5.100 x 400 x 0.120 (1$= 100€). $ 0.408 - 40.8] ¢ - 0.522 OOS 221