6 Suppose you have a clothes dryer that uses 4000 watts of power and you run it for an average of 1 hour each day If you pay the utility company 14c per kilowatt hour of electricity what is the average daily cost to run your dryer How much would you save in a year if you replaced it with a more efficient model that uses only 2000 watts I watt 1 joule sec 1 kilowatt hour 3 6 x 10 joules