A 100-W light bulb is left on for 10.0 hours. Over this period of time, how much energy was used by the bulb?
Q: Chapter 27, Problem 041 In the figure &₁ = 3.70 V, E2 = 0.987 V, R₁ = 5.78 , R₂ = 2.86 2, R3 = 5.98…
A: As per the guidelines i can solve only first question at a time so please another question…
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Q: A 9.0V battery moves 3.5 X 10^3C of charge.How much energy does the battery deliver?
A: Given, Voltage of Battery = 9.0V Charge moved = 3.5×103 C We know that potential electrical energy…
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Q: One heater uses 310 W of power when connected by itself to a battery. Another heater uses 210 W of…
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Q: The spark of a natural lightning bolt is 25 gigawhats, it releases an energy of 21.8 x 10 e5 whatss…
A: Write a given values of this question. P=25×109WE=21.8×105Wt=1s
Q: In the figure & = 2.46 V, E2 = 0.819 V, R1 = 6.20 Q, R2 = 1.80 Q, R3 = 4.00 Q, and both batteries…
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Q: A car battery has a voltage of ε = 12 V. To turn the starter on a car the battery must supply I =…
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Q: 5. V (V) I (A) R (0) 100 V 1 2 www R₁ = = 250022 3 -ww .= 500Ω R= 4 R₁₂= = 10.0000 ww 5 34 R3 = . =…
A: Given:- A circuit is given here as R1= 2500Ω R2= 10000 ΩR3= 1000 Ω R4= 1500 ΩR5 = 500ΩV =…
Q: The average television set is said to be on 6 hours a day. a) Calculate the yearly cost (total…
A: Given: Average time Television is ON = 6 h/day Average power consumption = 130 W/TV…
Q: One heater uses 340 W of power when connected by itself to a battery. Another heater uses 210 W of…
A: Given:- The first heater which is connected to the battery of V voltage uses a power P1 = 340W The…
Q: Suppose that by mistake you leave ten 50-W light bulbs turned on at your house for 24 hr. Say that…
A: Given Power P = 50 W Time t = 24 hours = 24 × 60×60 = 86400 sec
Q: In National Lampoon’s Christmas Vacation”, Clark Griswold is quoted as saying “250 strands of…
A: Given : Number of strands=n=250 Bulbs in each strand=b=100 Total bulbs=n x b=25000
Q: In the figure &1 = 2.45 V, 82 = 0.803 V, R1 = 6.98 N, R2 = 1.530, R3 = 5.09 0, and both batteries…
A: To determine,part arate at which energy is dissipatated in R1, R2 and R3.part bWhat is the power of…
Q: The power supplied to a typical black-and-white television is 90.0 W when the set is connected…
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Q: One heater uses 310 W of power when connected by itself to a battery. Another heater uses 200 W of…
A: Given:- The first heater which is connected to the battery of V voltage uses a power P1= 310 W The…
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- An electric motor raises a 41.6-pound-force platform loaded with 7.55-pound-force bags of calcium carbonate to 15 feet above ground level in 40 seconds on Mars. Gravity on Mars is 3.7 m/s/s. Motor has 65% efficiency and is wired to a 110-volt circuit that has a 15-ohm resistor. What is the maximum number of bags that can be lifted with the electric platform (round down to the number of whole bags)?A particular household uses a 1.9 kW heater 1.8 h/day ("on" time), four 100 W lightbulbs 6.0 h/day, a 2.8 kW electric stove element for a total of 1.0 h/day, and miscellaneous power amounting to 2.0 kWh/day Part A If electricity costs $0.105 per kWh, what will be their monthly bill (30 d)? Express your answer using two significant figures. Π| ΑΣΦ Cost = Submit Part B m = Submit Request Answer How much coal (which produces 7500 kcal/kg) must be burned by a 36 % -efficient power plant to provide the yearly needs of this household? Express your answer to two significant figures and include the appropriate units. O μà Value Units Previous Answers Request Answer ? ? $ per monthA family goes on vacation for one week but forgets to turn off an electric fan that consumes electricity at the rate of 200 W. If the cost of electricity is 12.0¢/kW.h how much does it cost (to the nearest penny) to run the fan for the week? Express your answer in dollars. 403.2
- Lee watchesTV for 2 hours per day. During that time, The TV consumes 200 W per hour. Electricity cost 12 cents per 1 kilowatt hour. How much does lees TV cost to operate from a month of 30 days?@A particular household uses a 1.9 kW heater 1.8 h/day ("on" time), four 100 W lightbulbs 6.0 h/day, a 2.8 kW electric stove element for a total of 1.0 h/day, and miscellaneous power amounting to 2.0 kWh/day. Part A If electricity costs $0.105 per kWh, what will be their monthly bill (30 d)? Express your answer using two significant figures. Cost = 33 $ per month Submit Previous Answers ✓ Correct Part B How much coal (which produces 7500 kcal/kg) must be burned by a 36 % -efficient power plant to provide the yearly needs of this household? Express your answer to two significant figures and include the appropriate units. O ΕΞΑ HÅ m= 100.97 kg Submit Previous Answers Request Answer ?
- One day on a particularly stormy night, a science student is watching the rain and thinking about all the homework they have to do. Just then a bolt of lightning discharges 21 C from one cloud to a power line. The student was able to use their iPhone to measure the potential difference to be 15,050 volts. With this data, how much energy is lost by the cloud and gained by the power line? O O a b с Od 316,050 J 442,470 J 94,815J 221,235 Jit the minimum average power? 13. An energy-efficient fluorescent lightbulb operating at power Pı = 28 W can produce the same level of brightness as a conventional incandescent lightbulb operating at power P, 100 W. Lifetime of the energy-efficient bulb is T = 10000 h, and its purchase price is B1 = $4.50. Lifetime of the conventional bulb is T2 = 750 h, and its purchase price is B2 = $0.42. Suppose electrical energy costs R = $0.20/kWh, i.e. 20 cents per kilowatt- hour. a) Calculate the total cost of using energy-efficient bulbs over 10,000 hours. b) Calculate the total cost of using conventional bulbs over 10,000 hours. Note that you must include both the cost of purchasing the bulbs and the cost of energy.Handwritten solution are strictly prohibited ?
- Problem 6: Suppose the cost of an incandescent bulb is 23 cents and that electricity costs 12 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.R₁ Rs R₁₂ In the figure ε₁ = 3.74 V, 2 = 0.900 V, R₁ = 6.13 2, R2 = 2.35 2, R3 = 4.80 02, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? (a) Number Mi Units (b) Number i Units (c) Number i Units (d) Number i Units (e) Number i UnitsThe cost of electricity in Los Angeles is 5 cents per 1,000,000 joules. Suppose a small 2000-watt air conditioning unit is operated continuously for 3 hours. What is the cost (in dollars) of the total energy consumed?