Answered: An electric water heater consumes 300…

An electric water heater consumes 300 watts for 3 hrs per day. What is the cost of running it for one year if electricity costs P 6.00/kWh? P 197.10/yr P1,971.00/yr P 19,710.00/yr P 19,710.00/yr

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: What is the electrical energy stored per 1 squared micron of cell membrane at the voltage -70 mV?

A: Area of cell membrane=A=1 micron2=1×10-62 m voltage=V=-70 mV=-70×10-3V

Q: During an experiment to verify Ohm's law, the voltage and resistance of a circuit are measured.…

Q: How much does it cost (in P) to operate a 670-W split-type inverter air conditioner for 8 in 30…

A: We have-Power, P= 670 Watt=0.67 KWatt.Time, t= 8 h per dayTotal days= 30Hence, time 't'=30×8h= 240 h

Q: Assume you have one room it has 8 lamps and they are working 11 hours per day. If the unit price is…

Q: Two heaters A and B are in parallel across supply voltage V. Heater A produces 757 kcal in 20 min…

A: Given that For heater A Heat H = 757 kcal Time t = 20 min Resistance RA = 10 ohm For heater B Heat H…

Q: A set of current (I) and voltage (V) data is collected for a given circuit. The current is measured…

A: From Ohm's law, we know V = I R V is Voltage , I is current and R is resistance.

Q: A typical candy bar contains approximately 250kcal. How long would this power a 60 W lightbulb?

A: Convert kilo calorie to joule. E=250 kcal4184 J1 kcal=1.046×106 J The relation between power and…

Q: A 2.21-kg steel ball is dropped from a plane to an ocean. If the velocity of the ball just before…

A: Given : m=2.21kg u=1.67m/s (initial velocity) Fb=-2.65v…

Q: A fan in an air conditioning unit rated at 250 WCome on for an average of 5.0 min at A time, a…

A: Power of fan = P = 250 W Average time fan is on at a time = t=5 min = 300 sec Number of times a day…

Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A: Given, Electricity cost = 0.12$/kWh And power P=Et So, E=P.t a) Power = 40W total time, t =7days=…

Q: How much does it cost to operate a 695W heater for exactly 30.0 min if electrical energy costs…

A: Given, Power, P = 695 W time, t = 30.0 min cost of electrical energy, C = $0.060 per kW.h

Q: Consider that a heart of defibrillator uses 404 j of energy in 11 ms What is the average power…

Q: Assume you have one room it has 8 lamps and they are working 11 hours per day. If the unit price is…

A: Solution: Given that working hours = 11 hours working days = 20 days number of lamps = 8

Q: 2 1. Calculate V1 11, V2 , and iz l2 in the circuit shown in figure 1.40. 2.08 12 10 o 40 6Ω V1 i2…

A: Now given circuit is, Now from the circuit we can see A and B is shorted, and since current always…

Q: An engineer creates a model to predict the electric consumption of a household in summer in a day…

Q: Assuming that the diet of an average Canadian consumes 2,500 food calories per day (1 cal=4200 J),…

A: We are given energy consumption by food of 1 person. We first calculate energy consumption of 5…

Q: Question #18. Calculate the cost of operating this light bulb in 10 seconds. Given 4pesos/kWhr. I…

A: Given: The power of the bulb is 50 W. The time interval is 10 s. The cost rate is 4 pesos/kWhr.

Q: What is the useful energy output when a 60 W light bulb is on for 2 hours? Recall, traditional light…

Q: A water jet consumes 3950W for 126 hours a week What is the energy consumed (kWh) for a one-year…

A: Given Power consumed by water jet =3950 W =3.950 kWh Used for 126 hours a week.

Q: An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one…

A: Given: Power, P = 5 kW time,t = 2 hours Cost = 12 cents / kWh

Q: Compact fluorescent bulbs aremuch more efficient at producing light than are ordinary…

A: Given: Power consumption of a fluroscent bulb is Pf=23.0WCost of compact bulb is Cfb=11.0$Power of…

Q: a 9.50 SL 10,0V Iz 1.402 3.00V e Is

Q: A typical cost for electric power is $ 0.135 per kilowatt-hour. (a) Some people leave their porch…

A: Solution

Q: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…

A: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…

Q: Suppose a heart defibrillator consumes 425 j of energy in 10.5 ms. What is the average power output…

Q: Calculate the cost of leaving 1300 W refrigerator for a year, if the electric company charges you 12…

A: Write the formula for the total amount of power used in a year. Ptotal=watts×hours used per day×days…

Q: R2 = 576 2 R = 576 2 ww R3 = 576 2 ww

A: Given: R1=576 ΩR2=576 ΩR3=576 Ω The supplied voltage is 120 V.

Q: A refrigerator using 1020 W runs one-third of the time. How much does the electricity cost to run…

A: The total time run by refrigerator ist=1330 days24 h=240 h

Q: Suppose you have a 2000 Watt water heater that is on for a total of 150 hours a month. How much will…

A: Total energy consumed = 2000×150 Watt-hrs=2×150 kW-hrs=300 kW-hrs

Q: An older electric water heater uses 10.0 of power while it's on, but it's only on for 2 hours every…

Q: The ammeter shown in Figure reads 2.00 A. Find I., I, and E. 7.00 2 15.0 V 5.00 Q

Q: Energy c o s t s $ 0.053/kWAh. A toaster, rated at1.0 kWAh, is used for a total of 30 minutes per…

A: The kilowatt-hour (kWh) is the unit of energy equivalent to 1 kilowatt (kW) of power expended for 1…

Q: A typical candy bar contains approximately 250. kcal. How long would this power a 60.0W lightbulb?

Q: A family goes on vacation for one week but forgets to turn off an electric fan that consumes…

A: Given data: Power (P) = 200 W = 0.200 kW Total time = 1 Week Cost of electricity = 12.0 ¢/kW.h…

Q: A solar panel of length L and width W produces 28.4 kWh in a day. Under the same conditions (i.e.…

Q: In a particular town, electrical energy costs $0.12 per kilowatt-hour. (Round your answers, in…

A: Given the town cost 0.12 dollars per kilowatt-hour. Let P defines as the power. And t be defined as…

Q: Lee watchesTV for 2 hours per day. During that time, The TV consumes 200 W per hour. Electricity…

A: P=200W=0.2 KW (Power consumed per hour) T=30*2=60 hours (total time) Rate= 12 cents per Kilowatt…

Q: The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is…

Q: A monthly éléčtřić bill iš based or ge. • A set of electronic devices that altogether are rated at…

Q: Given: power needed to run the TV: 500W What is the cost of running the T.v if we binge watch 5…

Q: A 1100 W toaster takes one minute to toast a slice of bread. At 9.0 cents/(kW.-h), how much does the…

A: Time to toast a bread = 1 minute = 1/60 hour Power of toaster = 1100 W cost= 9.0 cents/kWh

Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

An electric water heater consumes 300 watts for 3 hrs per day. What is the cost of running it for one year if electricity costs P 6.00/kWh?
P 197.10/yr
O P1,971.00/yr
O P 19,710.00/yr
O P 19,710.00/yr

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1 Determine the total energy usage

VIEW

Step 2 Determine the cost of energy usage per year

VIEW

Step 3 Conclusion

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

An electrical circuit contains a capacitor of 52 picofarads and a resistor of 1344 ohms. If the capacitor is fully charged, and then the voltage is interrupted, in how much time will about 95% of its charge be transferred to the resistor?
A 1.5 kW kettle is used 5 times a day for five minutes each time. What is the cost of running the kettle for a week, if the unit cost of electricity is 5.00/kWh? O P 22/week O P 187.50/week O P 262.5/week O P1,312.50/ week
A house has 3 tubelights, 2 fans and a television. Each tubelight draws 40 W. The fan draws 80 W and the television draws 60 W. On an average, all the tubelights are kept on for five hours, two fans for 12 hours each and the television for five hours a day. Find the cost of electric energy used in 30 days at the rate of Rs. 3.00 per KWH.
How much does it cost to run a refrigerator all day, for 6 months (assuming there are 30 days in a month)if it requires 4.5 kW and the charge is P 6.50 per kWh? O P 702.00 O P5.265.00 O P 21,060.00 O P 126,360.00
An iPhone battery stores 6.55 Wh of energy. How many iPhones could be charged in one day by a small solar panel of dimensions 0.54 m X 0.35 m. Assume that this panel has an efficiency of 18% and is in Gainesville where we get 5.47 kWh/m2/lday. Roundoff the number to zero decimals. 54 36
What is the available energy content, in joules, of a battery that operates a 2.00-W electric clock for 540 days?
Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by two 60-Watt incandescent light bulbs that are turned on for three hours per day. Group of answer choices 1.26 kW-hrs 0.84 kW-hrs 2.52 kW-hrs 0.36 kW-hrs
it 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.
Compact fluorescent bulbs aremuch more efficient at producing light than are ordinary incandescentbulbs. They initially cost much more, but they last far longer and usemuch less electricity. According to one study of these bulbs, a compactbulb that produces as much light as a 100 W incandescent bulb usesonly 23 W of power. The compact bulb lasts 10,000 hours, on the average,and costs $11.00, whereas the incandescent bulb costs only $0.75,but lasts just 750 hours. The study assumed that electricity costs $0.080per kilowatt-hour and that the bulbs are on for 4.0 h per day. What is the resistance of a “100 W” fluorescent bulb? (Remember, it actually uses only 23 W of power and operates across 120 V.)
One 9-volt battery contains 19.7 thousand joules of energy. A 4-pack of 9-volt batteries cost $10.31 at Lowe's. Estimate the cost of battery energy in dollars per kilowatt-hour. Energy conversions are available in Section 2.2 of the textbook. Round your final answer to the nearest $10 per kilowatt-hour.
please help me with this problem. ASAP! show complete and explicit solution. do not skip any mathematical step
A sump pump turning at 1600 rpm provides a discharge of 9 gpm against a head of 18 ft. Compute the minimum power input. Use the graph below to determine the efficiency.