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) I eavinn a 60.0−W porch light on for 2 weeks while you are on vacation. (b) Makina a piece of dark toast in 3.00 min with a 870−W toaster. ×∝ (c) Drvina a load of clothes in 40.0 min in a 4,700 W dryer.

Answer 1

(a) =10368000J

(b) unknown

(c) 3120W -most likely incorrect

sorry i know i was unable to answer b. but hey i got a. so thats gata count for something and while I believe c. is correct i am not 100% sure use that at your own risk.