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February 13, 2016

# Search: Physics/ electricity

Number of results: 65,940

physics
if a electricity genreter move with the speed of 60km/h how much electricity they generate in 1 minute in volt
September 8, 2014 by rahul

math
In a normal month you use 1200 kWh of electricity. Your electricity provider has decided to increase the rate it charges for electricity by \$0.05 per kWh. If you continue to use electricity at the same rate, how much more will it cost for one year? explain plz!!!
October 29, 2013 by anonymous0.1

Physics
Hi. This question is from my own point of view based on electricity. Is it possible in theory to have electricity passed through wireless rather than using wires????
June 17, 2013 by anonymous

physics
explain the close relationship between magnetism and electricity? and How can electricity produce magnetism, and magnetism produce electricity.
July 3, 2009 by Leslie

physics
Your electricity usage for a one month period is 500 kilowatt-hours. Assuming one month is equal to 30 days and that the electricity usage is uniform across the whole month, what would be the velocity of a 1 kg mass if it was given the kinetic energy equivalent to one day's ...
November 3, 2011 by pakilina

PHysics
describe briefly how a generator works. Well, I'm in the electricity unit of my course, so would this mean I have to describe how electricity's generated?
December 28, 2008 by Jane

physics
Can water,air and earth conduct electricity? If yes, then explain how they conduct electricity.
February 3, 2012 by mikylexes

physics
a family goes on vacation for a week and leaves on a fan that consumes electricity at the rate of 200 watts. If the electricity is \$0.14/kWh, how much does it cost to run the fan during this time?
August 9, 2014 by kristen

essay: inventions
I have to write an essay for my english class. The "subject" is inventions. I came up with the phone, the car, electricity, and peanut butter. Peanut butter was more of a joke. I think that I should do electricity. If I did electricity, I could put different things that we ...
January 22, 2012 by 12-year-old-poet

statistics
The quarterly seasonal indexes for a firm’s electricity consumption are 115, 92, 81, and 112 for quarters I-IV. It has been forecast that electricity consumption will be 850,000 kilowatt-hours during 2008. Forecast electricity consumption for each quarter of 2008
August 16, 2009 by Yadira M

chemistry
22. Choose the best description for a solid held together by London forces. A. This substance melts at -30 °C to give a liquid that does not conduct electricity. B. This substance melts at 650 °C and both the solid and liquid phases conduct electricity. C. This substance melts...
February 13, 2011 by Kathy R

Physics
Assuming 100% of your energy can be converted to electrical power, and electricity costs \$0.10 for 1 kilowatt-hour, how high should you climb to make one penny's worth of electricity? Show all work & units. I have 288.8 watts, and that's as far as I have been able to reach.
October 5, 2010 by Amber

math
Consumers pay for electricity by the kilowatt-hour (the amount of electricity used by a 1,000-watt appliance in one hour). If electricity costs 10cents per kilowatt-hour, what is the cost of running a 100-watt lamp for 1. 1 hour? 2. 24 hours? 3. 1 year?
December 7, 2010 by Mike

Science
Why do we have an electricity crisis? What will happen if we don't save electricity?
April 15, 2009 by Rochelle

Science
I need help with static electricity and generating current electricity.
November 13, 2012 by Aamira

The monthly cost of electricity in Smithville is determined by the function C(e) = \$0.16e + \$24.54, where e is the amount of electricity used in kilowatt-hours (kWh) and C(e) is the total cost. If the Fox family used 872 kWh of electricity last month, how much was their bill? ...

chemistry
Suppose a fuel-cell generator was used to produce electricity for a house. If each H2 molecule produces 2e- , how many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of electricity per month, ...
July 11, 2010 by seth

chem
Suppose a hydrogen-oxygen fuel-cell generator was used to produce electricity for a house. Use the balanced redox reactions and the standard cell potential to predict the volume of hydrogen gas (at STP) required each month to generate the electricity needed for a typical house...
August 9, 2010 by Anonymous

Chemistry
Suppose a fuel-cell generator was used to produce electricity for a house. If each H2 molecule produces 2e- how many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of electricity per month, ...
April 13, 2012 by Anonymous

Chemistry
Suppose a fuel-cell generator was used to produce electricity for a house. If each H2 molecule produces 2e-, how many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of electricity per month, ...
July 30, 2011 by norma

Chemistry
Suppose a hydrogen-oxygen fuel-cell generator was used to produce electricity for a house. Use the balanced redox reactions and the standard cell potential to predict the volume of hydrogen gas (at STP) required each month to generate the electricity needed for a typical house...
April 13, 2010 by Katelynn

Science
Solid table salt does not conduct electricity. How does dissolving salt in water allow electricity to flow?
December 1, 2009 by Easton

Chemistry
A household receives a \$155 electricity bill. The cost of electricity is \$0.129/kWh.How much energy, in joules, did the household use?
September 7, 2014 by Anonymous

science
Why are plasmas able to conduct electricity? Plasmas are electricity: all ions, free to move.
January 23, 2007 by Ryan

science
A certain quantity of electricity deposits 0.54grams of silver nitrate solution. What volume of H2 will be liberated by the same quantity of electricity at 27 ° C and 750 mm of Hg pressure
August 26, 2015 by Navneeta

Science 2 questions
how and where is electricity generated in British Columbia, Canada? describe how most of the electricity is generated in England or another country. But it must be different than what occurs in B.C. Please help, thanks:)
April 9, 2013 by Olly

English
1. We can save environment when we don't make junk any more. 2. If you run every day, you will get health. 3. We can save the electricity when we turn off the computer. ==================== Q1: Are they all grammatical? Q2: Do we have to use 'the' before electricity or not?
April 29, 2015 by rfvv

Physics
In a hydroelectric dam, water falls 26.0 m and then spins a turbine to generate electricity. What is ∆U of 1.0 kg of water? Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the...
November 30, 2009 by Zach

Science
When people want to use water to create electricity they generally build a dam to hold the water back, creating a large lake behind the dam. Why is it necessary to hold the water back with a dam in order to produce electricity? A)It increases the amount of water available. B)...
April 4, 2012 by Mia pleaseee helppp

Physics
Please give me numerically answer of tata mcgrawhill book class 10 of physics electricity total unsolved
August 4, 2011 by Abhishek kumar sahi

Science
List ways simple plants affect your life each day. (HINT: Where do electricity and heat for homes come from?) food, heat and electricity(from fossils and coal and oil), cars (gasoline from oil), etc.
February 7, 2007 by Jessica

maths
The monthly standing charge for a electrical company is €12.50 plus a cost of €0.16 per unit of electricity used. A customers monthly bill was €156.18. Determine how many units of electricity the customer used in that month.
May 3, 2013 by james

physics
why woods do not radiate electricity?
January 9, 2009 by Alveera

physics
5 usage for electricity.(in points)
October 10, 2012 by sumi

Physics
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it has an efficiency of ...
November 22, 2010 by Carl

Physics
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it has an efficiency of...
November 22, 2010 by Pleseansermi

Chem
The best solar panels currently available are about 13% efficient in converting sunlight to electricity. A typical home will use about 40. kWh of electricity a day. Assuming 8 hours of useful sunlight per day, calculate the minimum solar panel surface area necessary to provide...
October 20, 2006 by Joe

Chemistry
Regarding conductivity: 1. If a solution has a high conductivity, it indicates that there are a lot of __________________ in solution. [Answer: ions] 2. Pure acetic acid does not conduct electricity, nor does pure water, but a mixture of the two does conduct. This is explained...
November 24, 2009 by .

Physics
An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power consumption in watts. d...
June 1, 2011 by Nelly

Physics
An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power consumption in watts. d...
June 2, 2011 by Nelly

physics (electricity)
what is charging(electrifying) by induction?
June 12, 2008 by Naomi

Math
The amount of a monthly electric bill (B, measured in \$) depends on the amount of electricity used that month (E, measured in kWh). A typical public utility charges \$0.12 per kWh for the first 300 kWh used, \$0.17 per kWh for the next 600 kWh used, and \$0.29 per kWh for any ...
December 4, 2012 by alice

English
Look at this electricity bill, Andy. - Wow! That's a lot. ==================== In this short dialogue, what is the part of speech of 'a lot'? 1. The electricity bill is a lot. (Is this sentence grammatical? What other expressions can we use instead of 'a lot'?)
April 16, 2015 by rfvv

statistics
6. According to the records of Enersource, an electric company serving the Mississauga area, the mean electricity consumption for all households during winter is 1650 kilowatt-hours per month. Assume that the monthly electricity consumption during winter by all households in ...
June 23, 2013 by david

SCIENCE
Most electricity is produced using fossil fuels. Some people think electricity should be produced using resources such as wind,water,and solar energy. Why might people have this opinion?
November 3, 2011 by Ally

chemistry
1) why do copper 2 sulfate chrystals not conduct electricty? 2)why is copper 2 sulfate solution a good conductor of electricity? 3)why is water a poor conductor of electricity ,
November 22, 2010 by olivia

Electricity
Refrigerators requires a lot of electricity and uses the most electrical energy in most households. Why do refrigerators require so much energy to be operated?
April 8, 2014 by Sasha

Physics
Why is using mirrors to generate electricity not a common practice?
March 20, 2014 by Cherie

Chemistry
Which of these is more efficient on a large/small scale (power generation) and why? burning hydrogen to generate heat to drive turbines to produce electricity or directly producing electricity in a fuel cell reaction Can hydrogen be piped into homes, offices the way natural ...
May 8, 2011 by Alicia

English
To protect the environment, what do you have to do? 1. I'd better use less water. 2. I'd better take the stairs instead of the elevator. 3. I'd better ride my bike to school. 4. I'd better use less electricity. 5. I'd better not use paper cups or plates. 6. I'd better not use ...
April 8, 2014 by rfvv

math
Collect the water and electricity bill for your flat in the month of June, July and August- 2014. Construct a double bar graph for it. a) In which month is the consumption of water more? b) In which month is the consumption of electricity less?
August 27, 2014 by sandra

English
1. What do you think of a solar house? - I think the solar house makes money for us. - I think the solar house makes energy from the sun. - I think the solar house uses the sun to make energy. - I think the solar house uses the sun to make electricity. - I think the solar ...
November 18, 2009 by rfvv

English
1. However hot it is, he never turns on air conditioner to save electricity. 2. However hot it is, he never turns on the air conditioner to save electricity. 3. However hot it is, he never turns on an air conditioner to save electricity. 4. However hot it may be, he never ...
November 25, 2014 by rfvv

Pie Charts
On the pie chart it reads: 1999 U.S. Electricity Generation by Fuel Type (Billion Kilowat hours) Coal: 1882, 51% Natural Gas:565 15.3% Petroleum: 119, 3.2% Nuclear: 728, 19.7% Hydroelectric: 307, 8.3% Other Renewables: 89, 2.5% What was the total amount of electricity ...
December 13, 2012 by Jake

Physics
Why would you get an e3lectric shock if you flew a kite close to the electricity wires?
March 13, 2012 by Ruth

Physics
Why would you get an e3lectric shock if you flew a kite close to the electricity wires?
March 13, 2012 by Ruth

Chemistry
HCl is a gas at room temperature and does not conduct electricity. Yet when dissolved in water, the solution becomes an excellent conductor. Classify HCl as metallic, ionic, molecular or covalent network, and explain why HCl would conduct electricity in an aqueous solution.
February 25, 2015 by Morgan

English
Sunlight hits the solar cells on the backpack. The solar cells change sunlight into electricity. The electricity is stored in the battery. A cell phone or an MP3 player can be plugged into it. (In this passage, what does 'it' refer to in the last sentence?)
December 7, 2010 by rfvv

science
why is copper used for electrical wiring? The have writen 'Copper is a good conductor of electricity.' Is this correct? Yes, copper is a good conductor of electricity. It also is ductile (easily drawn into wires) (extruded), copper ore is realitively plentiful, etc.
April 1, 2007 by sean

PHYSICS
Give at least one example of an application of each branch: motion properties of materials sound light electricity magnetism properties of atoms nuclear physics Dont understand this.
September 7, 2011 by Anonymous

Science
I want to make a small model of how electricity is created by burning coal. I want to show a model that works and be able to light up and very small light bulb(the ones found in an average school microscope). How would I do this. You will find this difficult. I would suggest ...
December 18, 2006 by Gina

Science -Electricity
A complete circut requires an _____ ____ for electricity to flow from the ______to the _______ in the circut and ______to the battery. I'm trying to fill in the blanks. I think the first two are electric current think the second two are positive and negative but unsure of the ...

physics
What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt?
August 31, 2010 by Anonymous

physics
What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt?
September 1, 2010 by Anonymous

college Physics
You are in closed room somehwere on Earth. You have no compas, gyroscope or GPS. No TV, phone, FAX, emil, computer, internet, or cell. No cable no external connections with outside networks. However you have electricity the regular network and a lab with all sort of electric ...
April 12, 2010 by DL

science
2) Which is not an example of matter? A. water B. air(i think it this one) C. gold D. sound 3) The amount of space an object occupies is called its ..... A. volume(i think it this one) B. mass C. electricity D. gravity 4) Atoms in a molecule are joined together by.. A. ...
December 12, 2014 by eduarda

Civics
When Hurricane Andrew struck Florida in 1992, many people were responsible for the safety of its citizens. Which was a primary responsibility of the federal government? Researching technology to detect future hurricanes Restoring water and electricity Repairing road signs and ...
January 21, 2015 by Ruby :)

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.
August 25, 2014 by Jack

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.
August 25, 2014 by Jack

Electricity
How long will it take to? 500 kms of wire, 1 curcuit breaker at one end and light at the other end. How long will it take, once the breaker is on for the electricity to travel 500kms to turn the light on.
August 6, 2010 by Kevin

Physics
Why is the voltage of the electricity produced by power stations is increased before its transmitted through the national grid? Please help Thanks
March 13, 2012 by Victoria

electricity 188
hi my name is christina and i have an electrical question i need help with. i am taking power engineering electrical 188. the question is: how much will ity cost to use 6 lamps of 100 W each if they burn for 5 hours each evening in a month (30 days). the cost of electricity is...
February 24, 2008 by christina

English
A: What do you think of a solar house. 1. I think the solar house makes money for us. 2. I think we can save energy thanks to the solar house. 3. I think we don't need to spend money on electricity. 4. I think we don't need to pay the electricity fee. 5. I think it is a good ...
November 18, 2010 by rfvv

Physics - The Branches of Physics
Give at least one example of an application of each branch: Motion -cellphone Properties of Materials Sound -Radios Light -Candle Electricity -Calculator Magnetism -VCR's Properties of atoms -Computers Nuclear physics -? Could you check to see if Ive done this right? And I ...
September 9, 2011 by Anonymous

physics
need help can someone please tell me Electricity is often converted into other forms of energy. List 3 examples.
January 5, 2012 by jenny

physics
how can we collect sound energy from outside? then it can be converted into electricity with the help of transducer. Have to prepare a model on this. Please earlier.
October 9, 2012 by edward

Environmental Science
True or False: 28. Hydroelectric energy is produced by flowing water turning a turbine which generates electricity. TRUE 32. Geothermal energy is generated when heated water or steam is pumped up from inside the Earth to power a turbine that generates electricity. TRUE Am I ...
March 1, 2010 by y912f

physics
electricity is measured in kilowatts-hours, kW*h. this quantity can be converted to which other unit that measures energy? a.Pascals b.Joules c.Newtons d. Watts
April 12, 2011 by jason

Math 2
The instruction booklet for a DVD player says that the player uses about 0.4 kilowatt of electricity per hour. If electricity costs \$0.20 per kilowatt per hour. How much does it cost to run the player for an hour?
May 2, 2014 by Jenny 2

Honors Physics
Give some examples of applications that resulted from work done by physicists. The answers I have are: computers, electricity, cars, and television. Are these acceptable?
August 24, 2014 by X

Honors Physics
Give some examples of applications that resulted from work done by physicists. The answers I have are: computers, electricity, cars, and television. Are these acceptable?
August 24, 2014 by X

Physics check
Today's nuclear power plants use nuclear..... to generate electricity. fission?
April 25, 2008 by Emily

demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. a)With no policies or restrictions on sulfur emisssions, how much sulfur ...
November 14, 2011 by Sushmitha

Physics
The total U.S. consumption of electricity in a particular year was 5.0 x 1012 kilowatt-hours. What is the mass equivalence of this amount of energy? Show all calculations leading to an answer.
December 4, 2015 by Lexi

statistics
Ok, so I'm trying to do this for my exam review. I get some of it, but not all: An electric utility is examining the relationship between temperature and electricity use in its service region on warm days. The utility has bivariate data detailing the maximum temperature (...
May 15, 2010 by peter

chemistry
Acids that form ionic solutions will conduct electricity. Acids that form covalent solutions will not conduct electricity. but acids have HYDROGEN in them and hydrogen is a gas is that why the results of the conduction test need to be changed because hydrogen is a non metal ...
November 1, 2008 by lila

science
solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative energy sources D. ...
April 29, 2014 by help plzz

Science Help!!!!
Solar,wind,nuclear,and hydorelectric energy sources are similar in which of the following ways? A. They are all nonrenewable energy sources. B. They all require an indirect use of sunlight in order to make electricity. C. They are all considered alternative energy sources. D. ...
December 14, 2014 by callie

Physics
How many excess electrons does an object with a total charge of -1.0 x 10exp-9C have on it? This is approximately the amount of charge involved in commonly encountered static electricity.
May 10, 2010 by Nina

English
1. The solar cell could change sunlight directly into electricity. 2. The solar cell could directly change sunlight into electricity. (Are both acceptable? What is the suitable position of 'directly'? Which one is right?)
June 15, 2011 by rfvv

English
1. The solar cell could change sunlight directly into electricity. 2. The solar cell could directly change sunlight into electricity. (Are both the same? Check the position of 'directly' in each xentence, please.)
June 18, 2011 by rfvv

Electricity
Very very urgent please help me... A small ball with mass =0,4g charged with electricity= 3x10^(-10) coulomb is united with the edge of a silk rope with length=8cm. The other edge of the rope is on a big insulating material with concentration of the electric energy: 25x10^(-6...
November 2, 2008 by Ryan

physics
A total of 10000kg of water per second flows over a waterfall 30m high.If half of the power this flow represents could be converted into electricity, how many 100-W lightbulbs could be suplied?
November 15, 2011 by Ania

Physics
A total of 100000 kg of water per second flows over a waterfall 30 m high. If half of the power this flow represents could be converted into electricity, how many 100 watt lightbulbs could be supplied?
February 2, 2013 by Olivia

algebra
Finances. During one month, a homeowner used 500 units of electricity and 100 units of gas for a total cost of \$352. The next month, 400 units of electricity and 150 units of gas were used for a total cost of \$304. Find the cost per unit of gas. Please show the work. Thanks
March 29, 2012 by PLEASE NEED HELP

Accounting
The Fairport Machine Shop wants to develop a cost estimating equation for its monthly cost of electricity. It has the following data: Cost of Electricity (Y) \$13,000 \$15,000 \$17,000 \$14,500 Direct Labor-Hours (X) 1,500 1,700 2,000 1,600 What would be the best equation using ...
November 19, 2014 by Serenity

science
A group of wind turbines operates in an open field. Which statement about the wind turbines is true? Answer A. The wind turbines produce movement of air that does work. B. The wind turbines do work by using electricity to produce power. C. The wind turbines cannot do work ...
April 30, 2013 by Anonymous

Physics 103
How do I solve this problem: You buy a 75W lightbulb in Europe where electricity is delivered to homes at 240V. If you use the lightbulb back in the USA at 120 V, what will it's power output be?
February 4, 2010 by Sandra

Physics ( electricity)
An electrom (qe = -1.6^-19 Coulomb) moves a distance of 0.170m in an 8.00 N/C electric field. Using appropriate formulas and a logical method, find the energy gained by the electrom. Whoa ... how do I do this???
May 27, 2012 by Art

Physics-Electricity
Consider three charged particles placed along the x-axis. The particle with q1 = 9.30 nC is at x = 6.87 m and q2 = 4.09 nC is at x = 0.600 m. Where must a positive charge, q3, be placed such that the resultant force on it is zero? x=?m
August 31, 2014 by Joe

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