A 180 W street lamp is operated for 13 hours a day. How much energy does it take to operate the lamp for 70 days? Express your answer in kW*h
Express your answer in joules.
A 180 W street lamp is operated for 13 hours a day. How much energy does...
How much does it cost to operate a 80-W lamp continuously for a week if the power utility rate is 25 cents/kWh.
11. How much energy does a 100-W light bulb use in 8.0 hours? (Note: 1kWh = 3.6x106 Jor 1kWx 1hour) O 800 kWh O 13 kWh O 0.008 kWh O 0.8 kWh
013 (part 1 of 2) 10.0 points A new type of 36.0 W lamp is designed to pro- duce the same illumination as a conventional 71.0 W lamp. How much energy does this lamp save dur- ing 390.0 h of use? Answer in units of J
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
Renewable Energy Systems a- Total appliance W-hour per day b-Total panel W-hours per day. Take the losses correction factor to be 1.2. c-Total Watt peak of PV panel capacity needed Wp (Power in 1 hour) d-The total no of panels e-Total battery capacity f-Number of batteries g-PWM Charge controller capacity. Take the tolerance factor to be 1.25. h-MPP Charge controller capacity. Take the tolerance factor to be 1.25. i-Inverter power. Take the tolerance factor to be 1.25. A house uses...
How much will it cost to operate a 99-watt television for 5 hours each day for 30 days if the cost of electricity is $0.05 per kilowatt-hour? Please show formula used to calculate each step.
How much work does the electric field do in moving a proton from a point with a potential of +130 V to a point where it is -70 V ? Express your answer in joules. Express your answer in electron volts.
How much does it cost to run a 1500-W hair dryer for 44 minutes each day for one month (30 days) at a cost of 15¢ per kWh? _________$
Constants I Periodic Table The current in a 120 V reading lamp is 2.2 A Part A If the cost of electrical energy is $0.075 per kilowatt-hour, how much does it cost to operate the light for an hour? Express your answer using two significant figures. Vα ΑΣφ dollars Cost = Request Answer Submit Next> Provide Feedback
If electrical energy costs 12 cents, or $0.12, per kilowate hour, how much does it cost to (a) burn a 100-W lightbulb for 24 h? (b) Operate an electric oven for 5.0 hifit carries a current of 20.0 A at 220 V?