The cost of electricity in Saskatoon is currently about 16.35 cents/kWh (including carbon tax). At this unit price, calculate the cost of the following. (a) Leaving a 80.0-W porch light on for 2 weeks while you are on vacation. (Give your answer in dollars.) $ (b) Making a piece of dark toast in 3.00 min with a 920.-W toaster. (Give your answer in cents to at least three decimal places.) ¢ (c) Drying a load of clothes in 40.0 min in a 5,900. W dryer. (Give your answer in cents to at least one decimal place.) ¢

The cost of electricity in Saskatoon is currently about 16.35 cents/kWh (including carbon tax). At this unit price, calculate the cost of the following. (a) Leaving a 80.0-W porch light on for 2 weeks while you are on vacation. (Give your answer in dollars.) $ (b) Making a piece of dark toast in 3.00 min with a 920.-W toaster. (Give your answer in cents to at least three decimal places.) ¢ (c) Drying a load of clothes in 40.0 min in a 5,900. W dryer. (Give your answer in cents to at least one decimal place.) ¢

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter22: Electric Current

Section22.2: Using Electric Energy

Problem 31PP

See similar textbooks

Similar questions

With a 1200-W toaster, how much electrical energy is needed to make a slice of toast (cooking time = 1 minute)? At 9.0 cents/kW h, how much does this cost?
A large household air conditioner may consume 15.0 kW of power. What is the cost of operating this air conditioner 3.00 h per day for 30.0 d if the cost of electricity is $0.110 per kW h?
The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9 mins., a 1.50kW heater for 8 hrs., a 3.4kW broiler for 20 mins. a four 100 watts lamps for 5 hrs. If the total cost she has to pay is $2.50, What is the unit cost per Kw-hr?
A typical incandescent reading lamp runs at 60W. If it is lefton constantly, how much energy (J) is consumed per day,and what is the weekly cost if energy is charged at a rate of12.5 cents per kilowatthour?
A 100-W driveway light bulb is on 10 hours per day. Assuming the power company charges 10 cents for each kilowatt-hour of electricity used, what is the annual cost to operate the bulb?
A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run the refrigerator each month (30 days) at 26¢ per kWh?
A refrigerator using 1030 W runs one-third of the time. How much does the electricity cost to run the refrigerator each month (30 days) at 29¢ per kWh?
The cost of electricity varies widely throughout the UnitedStates; $0.120/kWh is a typical value. At this unit price, calculatethe cost of (a) leaving a 40.0 - W porch light on for 2 weekswhile you are on vacation, (b) making a piece of dark toast in3.00 min with a 970 - W toaster, and (c) drying a load of clothesin 40.0 min in a 5 200 - W dryer.
Suppose you use 60 kWh (kilowatt hours) of electricity at $0.31 per kWH, 96 kWh at $0.27 per kWh, and 87 kWH at $0.22 per kWh. What is your total kHW of electricity used?
At a price of $0.080/kWh, what does it cost to leave a 100-W security light on during a 10 hour night? I need a well explained answer
The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is 8.8¢/kWh, and the clothes dryer is used for 700 hours in a year, what is the power rating of the clothes dryer? Explain in depth and clearly using this formula.
Suppose a heart defibrillator consumes 425 j of energy in 10.5 ms. What is the average power output of the defibrillator, in W?