Q) Rows of wind-powered generators are used in various windy locations to generate electric power. Does the power generated affect the windmills be windier if they weren't there? Dicuss in terms of energy conservation.

17,822 results
  1. Algebra2

    Wind farms are a source of renewable energy found around the world. The power P (in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v (in meters per second). If a turbine generates 500kW in a 10m/s wind, how much power

  2. science help

    Which of the following is considered a drawback to using wind energy as a source of power? Wind energy is highly polluting. Wind energy is nonrenewable. Winds do not always blow consistently. Winds produce lesser quality energy than other sources. is it c

  3. IB Physics

    a wind turbine has a power output p when the wind speed is v. The efficiency of the turbine does not change. What is the wind speed at which the power output is p/2 I know the answer is v/cube root of 2 but I don't know how to get that answer. Can you show

  4. Physics

    Q) Rows of wind-powered generators are used in various windy locations to generate electric power. Does the power generated affect the speed of the wind?Would Locations behind the windmills be windier if they weren't there? Dicuss in terms of energy

  5. Physics

    Q) Rows of wind-powered generators are used in various windy locations to generate electric power. Does the power generated affect the windmills be windier if they weren't there? Dicuss in terms of energy conservation.

  6. Calculus

    Chairs in an auditorium are arranged in rows in such a way that the first two rows each have the same number of chairs. The third and fourth rows each have three more chairs than the first and second row; the fifth and sixth rows each have three more

  7. physics

    An average of 120KW of electric power is sent to a small town from a power plant constant 10km away.the transmission lines have a total resistance of 0.4ohms, calculate the power loss if the is transmitted at 240v.

  8. Physics

    Research stations in Siberia, Antarctica, and other remote locations use human power. People at the stations turn pedals, similar to bicycle pedals, that are connected to electrical generators. A researcher wants to investigate the power output of a person

  9. Physics

    A wind turbine has blades that sweep an area of 2000m2. It converts the power available in the wind to electrical power with an efficiency of 50%. What is the electrical power generated if the wind speed is 10ms–1? (The density of air is 1.3 kg m–3.)

  10. Enviormental

    35. In two or three well-developed paragraphs, explain how fossil fuels are used to generate electricity in an electric power plant.

  11. science

    Electromagnetic generators generate electricity. Events that occur to generate electricity are listed below. What is the correct order of events? A. The initially stationary electrons in the wire experience a force. B. The conducting coil rotates. C. The

  12. Math

    Barbara has a mixed garden that has 16 rows of different flowers and vegetables. One fourth of the rows are lettuce, 1/8 of the rows are pumpkins, and 1/2 of the rows are red tulips. The other rows are carrots. How many rows of carrots are in Barbara's

  13. algebra

    Wind farms are a source of renewable energy found around the world. The power P(in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v(in meters per second) If a turbine generates 700kW in a 5m.s wind, how much power does

  14. Applied Physics

    Which is a vector quantity? electric energy electric charge electric power electric field intensity

  15. phy

    An electric kettle contains 1.5 kg of water at 100o C and powered by a 2.0 kW electric element. If the thermostat of the kettle fails to operate, approximately how long will it take for the kettle boil dry? (Take the specific latent heat of vaporization of

  16. Physics

    In what ways are electric generators similar to electric motors? In what ways are they different? Is it possible to use the same apparatus as both a generator and a motor?

  17. 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

  18. algebra (23)

    How do you set up this problem? A boater travels 16 miles per hour on the water on a still day. During one particular windy day, he finds that he travels 48 miles with the wind behind him in the same amount of time that he travels 16 miles into the wind.

  19. Solar energy

    The worldwide installed wind power in 2012 was 280GW . Assume that the total electricity generation worldwide is 20200TWh per year, and a capacity factor for wind power of 30% . What percentage of the total electricity generation worldwide was covered by

  20. statistic

    in a beacside it rains on 20percent of days and is windy on 30percent a days.if rain and wind are independent on any particular days find the probability that it rains and it windy

  21. HEEEEEEELP

    HI I have no idea what's Alternative energy source . Can anyone help me in giving me a defintion for it thanx An alternative energy source is an additional one that is not being used already. It depends on what source is predominant or currently being

  22. science

    Energy from blowing wind can turn wind turbines, causing them to move, this type of energy is called __________ energy. The turbines then transform this energy into _________ energy. The electric energy is sent through wires in your home where it can be

  23. Algebra

    In a hurricane, the wind pressure varies directly as the square of the wind velocity. If wind pressure is a measure of a hurricane’s destructive capacity, what happens to this destructive power when the wind speed doubles? Do you have an equation to

  24. physics

    On a windy day the wind speed is 4 m/s, in the south direction. A runner jogs west at 3 m/s. What is the velocity of the air relative to the runner to the nearest whole number? You may want to draw a small diagram.

  25. Math

    A rocket is launched into the sky on a windy day. The rocket has a vertical velocity of 15 m/s. There is a strong wind blowing east to west at 35 m/s. How far from the start point is the rocket after 60 seconds?

  26. Math

    A garden has 10 equal rows. Two rows have beans, 1 row has lettuce, 3 rows have squash, and 4 rows have tomatoes. What part of the garden is beans? My answer is 0.2, or 2/10. Is this correct

  27. Physics

    A 46% efficient device uses chemical energy to generate 570J of electric energy. 1. How much chemical energy is used? 2. A second device uses twice as much energy to generate half as much electric energy. What is its efficiency?

  28. English 4

    When the speaker of “Ode to the West Wind” speaks of the impulse of the wind’s strength, to what is he referring? A. the sound of the wind B. the force driving the wind forward C. the weakening of the wind D. the random nature of the wind’s

  29. Algebra 2

    You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows? How do I

  30. algebra

    Wind farms are a source of renewable energy found around the world. The power P(in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v(in meters per second) If a turbine generates 500kW in a 10m/s wind, how much power

  31. statistics

    in a beach side suburb it rains on 20% of days and is windy on 30% of days. if rain and wind are independent, on any particular day find the probability that: (a) it rains and is windy (b) it does not rain and is not windy (c) it rains or it windy (d) it

  32. Giving answers out: science: Connections Academy

    Here is the question and the answers to the rest of the questions to the test! I do know I didn't give the answer to #25 but you can figure out that one on ur own. These are correct for Connections Academy. A D B B B A C D A D C D D Solar Panel

  33. math

    Hospitals contain backup generators in case of power failure. A hospital has two backup generators each of which has a 2% probability of failure. Only one generator is needed to supply emergency power. What is the probability that the backup system will

  34. please help me correct

    i have to write a project about amy project. i'll write for what i am trying to say but i hope you can help me put it in a better, organized sentence. our project is about flying paper airplanes outdoors and it was windy and i want to explain why it's a

  35. English 8R - It Happened in the Country

    wind·mill A building with sails or vanes that turn in the wind and generate power to grind grain into flour. or Move (one's arms) around in a circle in a manner suggestive of the rotating sails or vanes of a windmill. i think it's the second one, am i

  36. Science

    Please help! Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it

  37. Algebra

    The power P (in watts) generated by a windmill that has efficiency E is given by the formula P = 0.31ED^2V^3, where D is the diameter (in feet) of the windmill blades and V is the wind velocity (in ft/sec). Approximate the wind velocity necessary to

  38. Science HELP!!! FAST!!!

    24. Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it is not

  39. College Physics

    In Chapter 3 we learned that the force of air drag on an object moving rapidly through the air is proportional to v2, where v is the speed of the ball relative to the air. The same relation applies to the force of the wind on the blades of a wind turbine

  40. English

    1. He died young. 2. He died when he was young. 3. When he was young, he died. (Are they all the same?) 4. a strong wind, a high wind, a heavy wind, 5. a weak wind, a low wind a light wind, a gentle wind 6. a warm wind, a chill wind, a chilly wind, a

  41. physics

    Which of the statements regarding this situation are true? Select all that apply. -In this simulation when the capacitor voltage is set to a positive value the top plate has a positive charge on it and the bottom plate has a negative charge on it. -In

  42. Science

    Energy from blowing wind can turn wind turbines, causing them to move, this type of energy is called ____ energy. The turbines then transform this energy into ___ energy. The electric energy is sent through wires in your home where it can be used to power

  43. Science/Astronomy

    Large geomagnetic storms can cause surges of electric current here on Earth. What is the MOST LIKELY result of a large surge in electric current? F. power outages G.better TV reception H. cheaper electric power I. Local Group galaxy What is the answer???

  44. Physics

    How can the more wind speed and force, results greater amount of power for the wind turbine?

  45. Math

    The 5th grade question A roller coaster has 3 trains with 8 rows per train. Riders stand in rows of 4, for a total of 32 rider per train. The operators of the coaster recorded the number of riders on each train during a run. On the first train, the

  46. GPH111

    The temperature controls to two locations on Earth. Discuss how the 5 factors influencing temperature patterns effect St. Louis, Missouri (38°39' N, 90°W; elevation 535 ft) and Singapore (1°24'N, 103°55'E; elevation 16ft). How does the latitude affect

  47. math

    mr. goggins planted 10 rows of beans, 10 rows of squash, 10 rows of tomatoes, and 10 rows of cucumbers in his garden. he put 22 plants in each row. draw an area model, label each part, and then write an expression that represents the total number of plants

  48. Geography

    For this question, you need to apply what you learned about temperature controls to two locations on Earth. Discuss how the 5 factors influencing temperature patterns effect St. Louis, Missouri (38°39' N, 90°W; elevation 535 ft) and Singapore (1°24'N,

  49. science

    Why do Ontario and Quebec generate the most electric energy?

  50. Engish

    The weather is the condition of the atmosphere in one area at a particular time, for example if it is raining, hot of windy. (In this sentence can we use ' whether' instead of 'if' after 'for example' to have the same meaning?) English - Writeacher,

  51. Fossil Fuels

    If we ran out of fuels which could we use to almost replace them. Hydroelectric Wind Solar GeoThermal You have asked this question more than once today and received answers that probably none of them could replace the fuel we use today. And you don't

  52. English

    The poem Rose Pogonias is the poem. Which is the best paraphrase of lines 5-9? A. we stretched out in the heat of the flowers in this windless hot air place filled with strong odors. B. There was plenty of wind and the sickening stench of flowers while we

  53. science help PLS

    A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this problem? Increase

  54. pROBABILITY AND STATISTIC..HELP...................

    A small store installed a diesel-powered generator for emergency power outage because they function independently of electric power. The past history of the town indicates that on about 5% of days during summer the town loses electricity due to high winds.

  55. P5 Science Energy

    Please help me.... State the energy conversions in the maglev wind power station. ____energy(wind)-->_____energy(turbines)-->_____energy(generators)

  56. science

    which one of these are not used to power generators? A- wind B- moving water C- hot rocks under earth's surface D- static electricity

  57. Science

    Oregon and Washington generate far more hydro-electric power than most states. How does all this hydro-electric power help keep our electric bills low (half the cost of electricity in many states)?

  58. math

    Hospitals contain backup generators in case of power failure. A hospital has two backup generators each of which has a 2% probability of failure. Only one generator is needed to supply emergency power. What is the probability that the backup system will

  59. Math

    Electric eel can generate 5 times the voltage contained in a domestic power outlet. If a power outlet can supply 120 volts of electricity, how many volts of electricity can be generated by 2 electric eels combined?

  60. Information Literacy

    Please check my answer thank you. 1. Easy Bib and Cite This For Me are examples of A. courses for APA and MLA B. bibliography generators X C. Sources from the American Chemial Socitey D. bibliographies of the American Psychological Assocation My answer is

  61. English

    Posted by rfvv on Friday, October 21, 2016 at 9:54pm. ======================================= Does #1 mean #2 and #3? •English - Writeacher, Friday, October 21, 2016 at 10:36pm 2 and 3 are identical, aren't they? 1. It's usually very windy and foggy. 2.

  62. Algebra

    A man flies between two cities; on a windless day, he averages 120 mph round trip; on a windy day he averaged 140 mph with the wind; he averaged 100 mph against the wind; on the windy day, it took 15 extra minutes to make the round trip; what is the

  63. Physics

    he United States is currently considering standards to generate 20% of its electricity from renewable resource in the next 15 years. If this power is generated by wind turbines that generate 3 MW each, how many turbines will need to be installed in the

  64. Physics

    #1.) A wind turbine has a Cp of 0.42 and extracts 50 kW of power when the wind velocity is 25 m/sec. How long are the blades? (ρ = 1.2 kg/m3) #2.) An electric hot water heater is used to heat 30 gallons of water from 20 °C to 45 °C. a. What heat energy

  65. Science : Please Help!

    Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the coutnry. Explain what the benefits of wind power are and why it is not

  66. Science

    Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it is not

  67. Science

    Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it is not

  68. science

    Many people who care about conserving natural resources would choose to use wind energy to power their homes. However wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are, and why it is not

  69. Science Paper

    I am writing a paper on wind power. In this one paragraph I have to write about How wind power works. Well all the websites I have been confuse me so much. Can someone please give me a short summery of How wind power works? Thank you!

  70. science

    can you save money on your electric bill from a regular electric company by choosing to use a percentage of wind power through them? Or does it make your bill higher?

  71. math

    Mr. Tip is working on the marching band's halftime show. During the first song, rows have 9 musicians each. During the second song, rows change to contain 6 musicians each. If there are a total of 252 musicians in the marching band, how many rows will

  72. Science

    It’s OK to say that your brain is solar powered, because A) mitochondria in plant cells convert solar power to the chemical power that is used to run your brain. B) cellular respiration is powered by sunlight. C) the antenna complex in chloroplasts acts

  73. physics

    a large nuclear power plant generates electric energy at the rate of 1000 MW. how many joules of electricity does the plant generate in one day? what is the mass of this much energy?

  74. sci

    what are good materials to make a wind powered car out of?

  75. Biology

    Is Wind Power Green? I am writing a paper and I need to put together an outline of my final paper. I would just like to know if the following paragraph I have put together can serve as a thesis statement? "The idea that the world is reaching a possible

  76. Science

    In what ways are electric generators and motors similar? In what ways are they different?

  77. Pre-Algabra

    Unfortunately for mariners, the total amount of wave energy in a storm doesnt depend on the first power of wind speed, but on the fourth power. The seas generated by forty knot wind arent twice as violent as those from a twenty knot wind, they are 17 times

  78. Physics, science

    An electric kettle contain 1.5kg of water at 100 degree and powered by a 2.0kw electric element. He the thermostat of the kettle falls to operate, approximately how long will the kettle boil dry? (take the specific latent heat of vaporization of water as

  79. 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

  80. Algebra

    Need to get these checked-- 33. What is the area of a square with the dimension of 1 + sqrt of 2? 9.64 34. A matrix with 5 columns and six rows added to another matrix with 5 columns and 6 rows would result in a matrix with: a. 12 columns and 10 rows b. 5

  81. physics

    1.descibe the construction and working of machine used to generate high voltage? 2.draw electric lines between the plates of a parallel plate capacitor with 1(air) and 2(dielectric) as a medium? 3.near the surface of earth the field is about 100V/m. why do

  82. Dynamics

    It takes 16s to raise a 2800lb car and the supporting 650lb hydraulic car-lift platform to a ht of 6.5 ft. Knowing that the overall conversion efficiency from electric to mechanical power for the system is 82% determine a) the average power output

  83. Anonymous plz ASAP!

    A roller coaster has 3 trains with 8 rows per train. Riders stand in rows of 4, for a total of 32 rider per train. The operators of the coaster recorded the number of riders on each train during a run. On the first train, the operators reported that 7 1/4

  84. Sci

    what are good materials to make a wind powered car out of? i mean a fake car like milk jugs stuff like that

  85. trigonometry

    a wind mill is used to generate electricity. the wind mill has propeller blades that are 12 feet in length. if the propeller is rotating at 3 revolutions per second, what is the linear speed in feet per seconds of the tips of the blades?

  86. Mixed numbers

    A roller coaster has 3 trains with 8 rows per train. Riders stand in rows of 4, for a total of 32 rider per train. The operators of the coaster recorded the number of riders on each train during a run. On the first train, the operators reported that 7 1/4

  87. math

    Tom flies the helicopter through calm skies at a velocity v1. The direction of v1 is 15o north of east, and the speed is 180 km/h. Eventually, however, he enters a windy part of the atmosphere and finds that his helicopter now moves at a velocity v2. The

  88. Math

    Sara traces circle stencils for her project. She needs 4 rows of 6 circle stencils. She thought that 4 rows of 6 is the same as 3 rows of 8 and 2 rows of 8. Is this correct? Explain.

  89. Physics

    Calculate the electric power produced by a wind mill, when the wind speed is 10 m/s and the radius of the rotor circle (wing length) is 15 m. The density of air is 1.25 kg/m3. The eefficiency of the wind mill is 45%.

  90. Science/English

    According to Al Gore in An Inconvenient Truth, how is wind power beneficial in the fight against global warming? a.) it uses wind panels to trap the power of the wind b.) it emits water vapor, which cools the atmosphere c.) it creates a vast amount of

  91. Math

    I have a few questions about T-Matrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7? Or do I power the powered matrices by .7? Or

  92. Science

    It’s OK to say that your brain is solar powered, because A) mitochondria in plant cells convert solar power to the chemical power that is used to run your brain. B) cellular respiration is powered by sunlight. C) the antenna complex in chloroplasts acts

  93. Environmental Science

    I'm confused about how hybrid cars work...is gas used to accelerate, or is that electric power? So on highways, they just rely on electric power, right?

  94. Clean Energy

    What are some types of clean enregy and what are they? I have geothermal - heat from the Earth, hydropower - water power, wind power, biomass (I don't know what that is), and solar power - sun power. I would really like some help.

  95. Physics

    An electric current of 50 +/- 1 mA flows through an electric bulb filament that has a resistance of 10 +/- 2 ohm. Estimate the power dissipated by the filament and the associated error in the power.

  96. 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

  97. Physics

    A large kite of mass 3 kg is flying through the air on a windy day. Currently, the tension from the string on the kite has a magnitude of 7.7 N at an angle of θ = 33.5 degrees. The current acceleration of the kite has a magnitude of a = 7.56 m/s2 at an

  98. algebra 2

    You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?

  99. physics help please

    You want to use a windmill to generate electricity for your home. You decide to use Earths magnetic field which has a horizontal component B=10^-4 T to an induce emf. You design a conduction loop with 200 turns and surface area of 0.1m^2. The rod is 0.5m

  100. Physical Science

    Is it true that electric cars do not generate pollution because they have batteries?

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