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How much energy in consumed if a 100 watt light bulb is operated for 10 MINUTES?
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- How much electrical energy in a second is consumed by a bulb that ha a power rating of 50 watts? answer in kWIf the average household in a region consumes about 5,250 kWh of energy per year. In the region, the average annual solar energy potential is about 1,450 kWh/m² per year. If solar panels are available in sizes of 1 m x 1 m with an efficiency of 18 %, how many panels will be needed to power a house? (Since you can't have a fraction of panel, always round up you number to the next integer.) Your Answer: AnswerCalculate the number of kilowatt-hours (kW-hrs) consumed in a year by a 750-Watt hair dryer that is turned on for one hour per day.
- A heater of power 5 kW is completely immersed into a large tank of water. How much energy is transferred to the water if it is switched on for half an hour?If you have an average of 6.5 hours of online class per day for 204 days of school per year, how many kilowatt-hours are consumed and what is the annual cost of using your laptop if the estimated cost per hour of a laptopis P0.75 / kWh? (base this, a regular laptop uses 90 Watts.)A fuel tank contains 25 × 1010 BTUs of energy. The fuel is converted intoelectrical energy in the power station with an efficiency of 15%. The average of the demand at the station over a 24 hour period is 3.5 MW. In how many days the fuel will be consumed?
- How much electric energy is delivered to a 60 W lightbulb if the bulb is left on for 2.5 hours?How much work does a 75-Watt bulb do in one minute?A microwave oven has a power requirement of 1,255 W. A frozen dinner requires 4.2 min to heat on full power. (a) How much electrical energy (in kWh) is used? ___ kWh(b) If the cost of electricity is 15¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
- If a CD player uses electricity at a rate of 18 W, how much energy does it use during an 9 hour day?I have 72 lightbulbs in my house. 53 of these lightbulbs are 65 watt and the other 19 lightbulbs are 53 watt. I use the 65 watt lightbulbs an average of 10 hours a day and 53 watt an average of 12 hours a day. 1 kilowatt=1000 watts. Estimate the energy used during 1 year by all the lightbulbs in my home?A typical incandescent reading lamp runs at 60W. If it is left on constantly, a) how much energy (in MJ) is consumed per day, and b) what is the weekly cost (in $) if energy is charged at a rate of 12.5 cents per kilowatthour? Write your answer in two (2) decimal places