If electrical energy costs 12 cents, or $0.12, per kilowate hour, how much does it cost...
If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost? (a) To burn a 40.0-W lightbulb for 24 h. (b) To operate an electric oven for 3.9 h if it carries a current of 20.0 A at 220 V. $
If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost? (a) To burn a 40.0-W lightbulb for 24 h. $ (b) To operate an electric oven for 3.3 h if it carries a current of 20.0 A at 220 V. $
If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost? (a) Burn a 100 W light bulb for 24 h straight. ______$ (b) Operate an electric oven for 6.0 h if it carries a current of 20.0 A at 220 V. ________$
Assuming the cost of electricity is $0.12 per kilowatt-hour, how much does it cost to run a 16.0 W light bulb for one year if it runs for five hours a day?
A 140 W lightbulb is plugged into a standard 12D V outlet. (a) How much does it cost in dollars per 31-day month to leave the light turned on continuously? Assume electrical energy costs US$ 0.07/kW middot h. (b) What is the resistance of the bulb? (c) What is the current in the bulb? (a) Number Units (b) Number Units (c) Number units
Question 1: The average cost of power in the US is 12 cents per kilowatt hour (cents /kWhr). Remembering that a watt is just joules/s and that kinetic energy is -mv2 where m is the mass in kg and v is the speed in m/s, convert the cost to cents per Joule, and then determine how much it would cost per kg to get an object to increase its speed by 10 km/s.
t costs 2.6 cents to charge a car battery at a voltage of 12 Vand a current of 15 A for 120 minutes. Part A What is the cost of electrical energy per kilowatt-hour at this location? Express your answer indollars per kilowatt-hour. Express your answer using two significant figures.
How many kWh of energy does a 543 W toaster use in the morning if it is in operation for a total of 8 min? (answer in kWh) At a cost of 12 cents/kWh, estimate how much would this add to your monthly electric energy bill if you made toast four mornings per week. (Assume a month of 4 weeks.) (answer in cents/month)
solve and explain steps QUESTION 2 Problem 12 A How much energy will be used in KWH for one year you run your 2500 Wulf clothes dryer 8 times per month for 12 months for hour each time? Show all wort B. What is the current drawn by the dryer which runs off of 220 V/? What is the resistance of the dryer? TT TT Paragraph Arial 3 (1296) ET XD DIX I Pathp Words
What are the properties of energy? Give example of electrical, mechanical, chemical, thermal and electromagnetic energies. Explain Faraday’s law of electromagnetic induction. Does the transformer draw any current when its secondary is open? Can 50-Hz Transformers Be Operated at 60 Hz & Vice versa? Suppose that cost of electrical energy is $0.32 per kilowatt hour and that your electrical bill for 30 days is $180. Assume that the power delivered is constant over the entire 30 days. (a) What is...