Wednesday
April 23, 2014

Search: Electrical

Number of results: 1,174

Someone please help me with science?
1. Which of the following shows the correct sequence of energy transformations when listening to the radio? electrical; kinetic; sound; kinetic; electrical electrical; sound; kinetic; sound; electrical sound; electrical; kinetic; electrical; sound kinetic; sound; electrical; ...
Tuesday, April 16, 2013 at 10:52pm by Rebekah

7TH GRADE SCIENCE?!?!
1. Which of the following shows the correct sequence of energy transformations when listening to the radio? electrical; kinetic; sound; kinetic; electrical electrical; sound; kinetic; sound; electrical sound; electrical; kinetic; electrical; sound kinetic; sound; electrical; ...
Tuesday, April 16, 2013 at 11:41pm by Rebekah

Science
How does an electrical current in a circuit produce thermal, sound, and magnetic energy? The electrical current flows thru devices that convert the electrical energy to mechanical or electomagnetic waves. i have a science project do tommorrow but i need some pictures of the ...
Thursday, March 29, 2007 at 7:58pm by SasukeUchihaFanatic

electrical
The minimum size of a electrical cable recomended for use in power circuit is.
Sunday, November 1, 2009 at 10:45am by john

Science
no, copper is a high electrical conductor. and electrical measure is in units of volts.
Thursday, June 3, 2010 at 9:11pm by tutor

electrical technology
explain the importance of the telephone hammer in electrical installation
Thursday, February 11, 2010 at 9:02pm by shaquille

electrical
The minimum size of electrical cable recomended for use inpower circuits by the NEC in adomestic installation is
Saturday, October 31, 2009 at 9:57pm by Brannico

7TH GRADE SCIENCE?!?!
For the 1st one I got C. sound electrical kinetic electrical and for the second 5.3 quads. Is that right?
Tuesday, April 16, 2013 at 11:41pm by Rebekah

Science
What does a source of electrical energy do in an electrical circuit?
Thursday, December 14, 2006 at 6:33pm by Icy Rose

University Physics II
A 13.9 nC charge is located at position (x,y) = (1cm,2cm). A. At what (x,y) position is the electrical field -225,000i_hat N/C? B. At what (x,y) position is the electrical field (-161,000i_hat + 80,500j_hat) N/C? C. At what (x,y) position is the electrical field (-21,600i_hat...
Tuesday, March 23, 2010 at 10:06pm by Becky

physics
Explain how voltage current and resistance could interact to give a person a severe electrical shock if he or she touched an electrical wire in the wrong way.
Sunday, November 11, 2007 at 12:00pm by Lila

science
A CD player, when playing, gets the energy required to turn the disc, operate a disc-reading laser, and emit an electrical sound signal to speakers, from an electrical source. That electrical energy could come either from a wall outlet or batteries. When trees burn, the mass ...
Sunday, May 10, 2009 at 7:47pm by drwls

chemistry
Which phase of ionic compounds are good electrical conductors because the ions are free to carry electrical current? A. Solid B. Liquid C. Gas D. Crystalline I say B
Saturday, November 10, 2012 at 6:14pm by shana

physics
an electrical baseboard heater drawws a current of 6.0A and has a potential difference of 240V. For how long must it remain on to use 220 000 J of electrical energy.
Sunday, December 13, 2009 at 5:34pm by Lexipoo

7TH GRADE SCIENCE?!?!
The law of conservation of energy states that _____ is never created or destroyed. (1 point) Unselected answer (0 pts) mass Correct answer (1 pt) energy Unselected answer (0 pts) heat Unselected answer (0 pts) chemicals 1 /1 point 2. Unlike other forms of energy, thermal ...
Tuesday, April 16, 2013 at 11:41pm by Anonymous

Someone please help me with science?
1. the first one...electrical; kinetic; sound; kinetic; electrical 2. 5.3 quads!! trust meh!!!!
Tuesday, April 16, 2013 at 10:52pm by ????? me!!!

science
i need help finding some household items that have some of the following forms of energy: radiant, chemical, nuclear, electrical, acoustic, thermal, and mechanical. so far i have the TV as electrical, acoustic, and mechanical; the stove top as electrical, caustic, mechanical, ...
Thursday, January 6, 2011 at 7:13pm by Bri

Electrical Switches
What are the factors you consider when buying an electrical switch? I want to know what different people consider in order to obtain a good selection procedure. Thanks!
Thursday, November 25, 2010 at 10:58am by Claire

psychology
Neurons communicate with each other through: a) electrical language only b)electrical and hemical language c) the glial cells d)neurogenesis Is C correct answer?THANK YOU
Wednesday, March 3, 2010 at 1:27pm by vedrana

7TH GRADE SCIENCE?!?!
(1 pt) electrical; kinetic; sound; kinetic; electrical 5.3 I promise.
Tuesday, April 16, 2013 at 11:41pm by kaylee

Science
Please help. Copper has a low electrical conductor means a charge can move thru it easily? (right?) electrical resistance is measured in units of volts. - (right?)
Thursday, June 3, 2010 at 9:11pm by Joshuah

psychology
Definitely A. Electrical impulses within the neuron cause release of chemicals into the synapse. The electrical impulse goes throughout the neuron rather than just the axon, so its not C.
Friday, August 12, 2011 at 5:52pm by PsyDAG

physics
please check this: Which sentence best describes electrical conductors? a. electrical conductors have low mass density b. electrical conductors have high tensile strength c. electrical conductors have electric charges that move freely d. electrical conductors are poor heat ...
Saturday, March 14, 2009 at 8:32pm by physics

Science
Which of these energy changes takes place in a solar cell? A.Heat energy to light energy B.Light energy to electrical energy C.Electrical energy to heat energy D.Thermal energy to electrical energy C?
Monday, April 2, 2012 at 5:42pm by Rezu

Grade 12 Chem - please check answer
The four possible unknown chemicals are: Cu(s), Ca(OH)2(s), KNO3(aq) and C6H12O6(aq). a) colorless solutions, high electrical conductivity, no change on litmus paper b)white crystals, no electrical conductivity, red to blue on litmus c) shiny brown wire, high electrical ...
Sunday, June 1, 2008 at 3:24pm by Laura

Science
What type of energy from the Sun do plants use to make their own food? A.Chemical Energy B.Sound Energy C.Light Energy D.Heat Energy C? An MP3 player uses the chemical energy in a battery to produce electricity energy. The electrical energy makes the player work.When turned on...
Monday, April 2, 2012 at 6:38pm by Rezu

Physics
One million spherical points join a point.Radius of any point is r=5x10^-4cm, while electrical load is q=1.6x10^-14C.What is the energy that should be spent for possession of electrical forces?
Friday, January 18, 2013 at 4:39pm by fjolla

Physics
If the price of electrical energy is $0.10 per kilowatt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degrees Celcius?
Tuesday, February 15, 2011 at 5:45pm by Heather

physics
An oven is plugged into a 120 V electrical outlet and "cooks" the food by using a 144 ohm resistor light bulb that converts electrical energy to both light and heat energy. If the light bulb converts 75% of the electrical energy to thermal energy, and the oven is used for a ...
Thursday, May 30, 2013 at 8:49am by maddy

Physics/Chemistry
If the price of electrical energy is $0.10 per kilowatt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degrees Celcius?
Tuesday, February 15, 2011 at 6:41pm by Heather

Physics
An electrical cable is atteched to the electrical pole 25m apart. The cable weighs 2.5N/m and can resist a pull of 300N . assuming that the cable takes a parabolic shape, detrmine the smallest value of sag in the cable
Monday, April 1, 2013 at 10:55pm by Nirpendra

physics
Approximately 5.5 X10^6 kg of water fall 50m over Niagara Falls each second. a) What is the decrease in the gravitational potential energy of the water-Earth system each second? b) If all this energy could be converted to electrical energy (canít happen) at what rate would ...
Wednesday, January 10, 2007 at 8:44pm by Brian

physics
Approximately 5.5 X10^6 kg of water fall 50m over Niagara Falls each second. a) What is the decrease in the gravitational potential energy of the water-Earth system each second? b) If all this energy could be converted to electrical energy (canít happen) at what rate would ...
Thursday, January 11, 2007 at 2:50pm by Brian

Psychology
The means of travel within and between neurons is different because: A. electrical signals move impulses within the neuron, while chemical signals move the impulses between neurons. B. chemical signals move the impulses within the neuron, while electrical signals move impulses...
Friday, April 12, 2013 at 8:34am by Angela

science
what is the importance of fuses? They are placed in electrical equipment and in houses (although most houses now use circuit breakers) as safety devices. If a short occurs and too much electrical current is going through the circuit, the fuse "blows" (meaning it melts, the ...
Monday, April 23, 2007 at 12:41pm by garret

science
look at the units electrical energy (in kWh) = power (in kW) x time (in hour) cost of electricity = [electrical energy (in kWh)]*(12 cents/ kWh)
Thursday, February 10, 2011 at 10:10pm by TutorCat

unstanding psychology
the means of travel within and between neurons is different because: a. electrical signals move impulses within the neuron, while chemical signals move the impulses between neuron. b. chemical signals move the impulses within the neuron, while electrical signal moves impulses ...
Wednesday, July 20, 2011 at 4:14pm by Deanie

chem
Explain, in terms of electrical energy, how the operation of a voltaic cell differs from the operation of an electrolytic cell used in the Hall process. Include both the voltaic cell and the electrolytic cell in your answer. Would this be correct: In a voltaic cell, chemical ...
Monday, April 20, 2009 at 10:59pm by Anonymous

French/Science
Thank you for using the Jiskha Homework Help Forum. This is the English of what you have in French. A component of an electrical circuit: a component of an electrical circuit is any device or apparatus present in an electrical circuit. In the circuit that you have built, the ...
Friday, April 18, 2008 at 5:26pm by SraJMcGin

physics
If the price of electrical energy is $0.10 per kilo-watt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degree C? Can anyone please give me some hints to do it? Thanks a lot!
Sunday, February 10, 2008 at 5:01pm by Charolett

Pre algebra
Electrical poles that carry electrical wire seem to get smaller the farther away they are. Find the apparent height of each pole if the tallest pole is 50 ft tall and there is 100 ft between each pole.
Monday, March 25, 2013 at 7:34pm by Shanequa

Psychology
The means of travel within and between neurons is different because: A. electrical signals move impulses within the neuron, while chemical signals move the impulses between neurons. B. chemical signals move the impulses within the neuron, while electrical signals move impulses...
Thursday, April 11, 2013 at 9:54am by Angela

psychology
the means of travel within and between neurons is different because: a. electrical signals move impulses within the neuron, while chemical signals move the impulses between neuron. b. chemical signals move the impulses within the neuron, while electrical signal moves impulses...
Friday, August 12, 2011 at 5:52pm by lachelle mitchell

Physics
Could someone please help me with these questions. . . 1. Why are there positive and negative electrical charges, while magnetic poles always seem to be bound together? 2.If two resistors are connected in parallel, how do you know that their effective resistance will always be...
Monday, December 3, 2007 at 12:32pm by Adam

Physiology Midterm exam
1- List at least 5 most striking morphological and functional characteristics of nerves tissue make it different from other tissues? 2- Point out the advantages and disadvantages of chemical synapses as compared to electrical ones. Where in the human body can you find ...
Monday, April 22, 2013 at 3:02pm by Physiology

physics
i'm still getting C as the answer to this one drwl said its wrong When a positive charge moves in teh direction of the electrical field, what happens to the electrical potential energy associated with the charge? a. increase b. decreases c. remains the same d. increases ...
Thursday, March 12, 2009 at 10:23pm by physics

Chemistry
1. Which metal is the most easily oxidized? A.) highly active metal *B.) moderately active metal C.) slightly active metal D.) an inactive metal 2. What happens in a voltaic cell? *A.) Chemical energy is changed to a electrical energy. B.) Electrical energy is changed to ...
Wednesday, March 27, 2013 at 1:34pm by Jose

Chemistry
1. Which metal is the most easily oxidized? A.) highly active metal *B.) moderately active metal C.) slightly active metal D.) an inactive metal 2. What happens in a voltaic cell? *A.) Chemical energy is changed to a electrical energy. B.) Electrical energy is changed to ...
Wednesday, March 27, 2013 at 2:32pm by Jack

physics
The Easy Bake Oven is a common toy for young children who want to emulate the process of cooking. Suppose this oven is plugged into a 120 V electrical outlet and "cooks" the food by using a 144 ohm resistor light bulb that converts electrical energy to both light and heat ...
Thursday, May 30, 2013 at 11:05pm by Julia

PRE ALGEBRA
solution to electrical poles that carry electrical wire seem to get smaller the further away you are. Find the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between poles.
Thursday, January 23, 2014 at 10:34pm by BEV

Physics
A power plant burns coal and generates an average of 630.0 MW of electrical power while discharging 1058.40 MW as waste heat. Find the total electrical energy generated by the plant in a 30-day period.
Monday, January 6, 2014 at 11:03am by Nika

physics
Electrical energy in = (V^2/R)*time (in Joules) (use time = 540 seconds) All of this energy is converted to heat, Q. The electrical energy required is Q = M C *(delta T) = 2000 g*[4.186 J/(deg C*g)]*40 C Use those two equations to solve for R.
Tuesday, February 16, 2010 at 3:40pm by drwls

Science
Megan wants to determine if an electrical circuit has electricity flowing through it. Which of the following evidence is proof that the circuit has an electrical current? a)The circuit is a closed loop. b)A light bulb is lit in the circuit. c)The circuit's switch is in the ...
Wednesday, April 4, 2012 at 8:07pm by Isabella please help me

Intro to psychology
The brain can be studied by using: A.) electrical, biochemical, and meagnetic means B.) Radio reguencies,computers and neurotransmission C.)neurotransmitting, electrical,and biochemical means D.) biochemical,neurotransmitting, and magnetic means I think the answer is C but unsure
Thursday, January 5, 2012 at 9:56am by pateyn

Physics 221
An electron that is a certain distance from a proton is acted on by an electrical force. a) If the electron were moved twice the distance away from the proton, would the electrical force be:
Monday, December 30, 2013 at 12:08pm by Jamaal

math
Electrical system are governed by Ohm's law, which states that V = IR, where V=voltate, I=current, and R=resistance. If the current in an electrical system is decreasing at a rate of 9 A/s while the voltage remains constant at 14 V, at what rate is the resistance increasing ...
Sunday, May 2, 2010 at 11:40pm by christine

college physics
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Wednesday, September 18, 2013 at 4:13am by suhani

college physics
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Saturday, September 21, 2013 at 2:42am by vishal

college physics
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Saturday, September 28, 2013 at 3:59am by physics

PHYSICS
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Friday, September 13, 2013 at 3:52am by smita

physics
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Monday, September 16, 2013 at 1:34pm by suhani

college physics
a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Sunday, September 22, 2013 at 5:47pm by vishal

PHYSICS
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Sunday, September 22, 2013 at 10:28pm by suhani

PHYSICS
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Tuesday, September 24, 2013 at 7:13pm by suhani

PHYSICS
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Friday, September 27, 2013 at 10:09pm by suhani

PHYSICS
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Saturday, September 28, 2013 at 7:53pm by physics

PHYSICS
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Sunday, September 29, 2013 at 5:53pm by physics

7th grade social studies question Ms. Sue please
I'd go on wikipedia because they give a lot of info.. if you want the electrical telegraph then type electrical telegraph wiki and if you want the daily telegraph then type in daily telegraph wiki Hope this helps :)
Wednesday, November 7, 2012 at 7:44pm by Rylee

Psychology
According to the all-or-none law: A. all axons in an area will fight at a given signal. B. an axon moves from its resting state with various degrees of stimulation. C. only sufficient electrical activity will cause the axon to fire. D. there is a gradual build up of electrical...
Thursday, April 11, 2013 at 9:53am by Angela

Psychology
According to the all-or-none law: A. all axons in an area will fight at a given signal. B. an axon moves from its resting state with various degrees of stimulation. C. only sufficient electrical activity will cause the axon to fire. D. there is a gradual build up of electrical...
Friday, April 12, 2013 at 9:39am by Angela

Science
Molecules that make up matter move constantly.Which of these forms of energy refers to the energy of the moving molecules and why? A.Chemical Energy B.Thermal Energy C.Electrical Energy D.Light Energy Which device can change electrical energy to light and sound energy? A....
Monday, April 2, 2012 at 5:06pm by Rezu

Psychology
According to the all-or-none law: A. all axons in an area will fight at a given signal. B. an axon moves from its resting state with various degrees of stimulation. C. only sufficient electrical activity will cause the axon to fire. D. there is a gradual build up of electrical...
Friday, April 12, 2013 at 9:40am by Angela

psychology
The brain can be studied by using: A)electrical,biochemical and magnetic means B)radio frequences,computers and neurotransmission C)neurotransmitting,electrical and biochemical means D)biochemical,neurotransmitting,and magnetic means, I THINK CORRECT ANSWER IS A OR B
Monday, September 21, 2009 at 11:45am by vedrana

Science
The brain can be studied by using: (Points: 5) electrical, biochemical, and magnetic means. radio frequencies, computers, and neurotransmission. neurotransmitting, electrical, and biochemical means. biochemical, neurotransmitting, and magnetic means. i think it is C but not sure
Thursday, March 17, 2011 at 5:47pm by Chloe

Chemistry
The total electrical charge on the left side of a chemical equation must be equal to the total electrical charge on the right side. That is not the case on either chemical equation as you typed it.
Monday, July 20, 2009 at 9:22pm by GK

physic
I find it easier to view this from a mathematical standpoint: electric potential = electrical PE/ charge If the charge is 0, you have electric potential = electrical PE/ 0 you cannot have a zero in the denominator.
Thursday, July 15, 2010 at 5:30pm by Julia

science
A researcher determined the amount of electrical energy entering a toaster and the amount of heat given off by the toaster. The amount of heat was less than the amount of electrical energy. How can this observation be explained?
Thursday, April 3, 2014 at 10:34pm by victoria

calculus
Throughout the 20th century, the yearly consumption of electricity in the US increased exponentially at a continuous rate of 7% per year. Assume this trend continues and that the electrical energy consumed in 1900 was 1.4 million megawatt-hours. Find the average yearly ...
Thursday, January 19, 2012 at 3:08pm by Cookie

psychology
The brain can be studied using: A. electrical, biochemical and magnetic means. B. radio frequencies, computers, and neurotransmission. C. neurotransmitting, electrical, and biochemical means D. biochemical, neurotransmitting, and magnetic means. I think its A, but not so sure ...
Thursday, October 10, 2013 at 11:55pm by glory

gen physics II
Very large capacitors have been considered as a means for storing electrical energy. If we constructed a very large parallel-plate capacitor of plate area 1.0 m2 using paper (k= 3.7) of thickness 1.0 mm as a dielectric, how much electrical energy would it store at a plate ...
Monday, July 26, 2010 at 6:44am by Alinkashia

Psychology
According to the all-or-none law: A. all axons in an area will fight at a given signal. B. an axon moves from its resting state with various degrees of stimulation. C. only sufficient electrical activity will cause the axon to fire. D. there is a gradual build up of electrical...
Friday, April 12, 2013 at 8:37am by Angela

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...
Sunday, February 24, 2008 at 10:22pm by christina

SCIENCE HELP!!??
Hi Please any one can help me in my science homework It is Imagine that you were driving in a car and it was raining, what would be the froces acting around the car and what would the electrical charges bee around the car, on the base and in the sky. I will be happy to ...
Thursday, January 25, 2007 at 5:00am by AQW

Psychology
A physiological support of hypnosis as a different state of consciousness is: (Points: 5) rapid eye movement initiated when a person is hypnotized. a change in the electrical activity of the brain in hypnosis. the sense of time removed. reaction time slows down. I believe it ...
Wednesday, May 8, 2013 at 11:03pm by angela

Psychology
A physiological support of hypnosis as a different state of consciousness is: (Points: 5) rapid eye movement initiated when a person is hypnotized. a change in the electrical activity of the brain in hypnosis. the sense of time removed. reaction time slows down. I believe it ...
Friday, May 10, 2013 at 9:51am by Angela

Science
Heat flows from hot to cold. Objects attract each other, called gravitaional force. Opposite electrical charges attract, like charges repel. A electrical current creates a magnetic field. A changing magnetic field can induce a current in a wire. Mass and energy are equivalent...
Thursday, September 18, 2008 at 9:11pm by bobpursley

Physics
Nuts to your I know paragraph. This has nothing to do with water heating. It has to do with electrical forces and energy. Work= Volts*chargetrnasfered b. 1/2 m v^2= work done by electicity c. Now use the heat you pointed out. Electrical work= heat to heat water+ heat to make ...
Tuesday, January 26, 2010 at 1:56pm by bobpursley

Psychology
The means of travel within and between neurons is different becuase: a. eletrial signals move impulses within the neuron, while chemical signals move the impulses between neurons. b. chemical signals move the impulses within the neuron, while electrical signals move impulses ...
Wednesday, February 22, 2012 at 11:32am by Deb

Physics Help Please!
If the price of electrical enegy is $0.10 per kilowatt *hour, find the cost of using electrical energy to heat the water in a 12.0m * 9.00m * 1.5m swimming pool from 15 degrees C to 27 degrees C. So the change in temperature is 285.15 , the volume is 162m^3, the specific heat ...
Tuesday, April 6, 2010 at 2:51pm by Dave

biology
thanks. ok heres what i got from the book. the post synaptic neuron receives a chemical signal and generates the electrical signal. for the axon problem my teacher said sensory neurons transmit a signal along its axon to the cell body. The motor neuron tranmits a electrical ...
Friday, September 25, 2009 at 11:25pm by Jim_R

physics
The produced power is useful power, and 1.2 hp is 895 W. (1 HP = 746 watts). Therefore the electrical input power is 895/0.85 = 1053 W. Since electrical power P = I*V, the current is P/V = 1053/9.6 = 109.7 A The waste heat is 15% of the input power, or 158 W
Tuesday, March 11, 2008 at 2:22am by drwls

Psychology
According to the all-or-none law: a. all axons in an area will fight at a given signal. b. an axon moves from its resting state with various degrees of stimulation. c. only sufficient electrical activity will cause the axon to fire. d. there is a gradual buildup of electrical ...
Sunday, November 6, 2011 at 3:28pm by Kasey

STATISTICS
It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the model and telling its mean and standard ...
Tuesday, October 30, 2007 at 11:05pm by LT

physics
A)When the energy input to gas fired power station is 1000MJ,the electrical energy output is 300MJ.What is the efficiency of the power station in changing the energy in gas into electrical energy b)what form does the 700MJ of lost energy take c)what is the fate of the lost energy
Wednesday, August 3, 2011 at 4:58am by Luc

Psychology
Electrolytic lesions are ways of destroying extremely small and specific parts of the brain with electrical current to find out what the function of those parts were. Changes in behavior after lesioning indicate the function(s) of that area. In contrast, with microelectrodes, ...
Monday, February 11, 2008 at 7:04pm by PsyDAG

Biology
Which one of the following statements about sense receptors is true? A)Chemicals, light and pressure convert stimuli into electrical implses. B) Electrical impulses within the nerve pathways trigger an awareness of stimuli in the sensory receptors C)Sensory receptors are ...
Tuesday, August 31, 2010 at 11:56pm by Rena

Algebra
The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. a wire with length of 200 inches and a diameter of one- quarter of an inch has a resistance of 20 ohms. find the electrical resistance in a 500 inch wire withe the ...
Sunday, January 9, 2011 at 7:16pm by Mike Bedell

Elementary Statistics help
It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the model and telling its mean and standard ...
Monday, October 29, 2007 at 3:34pm by LT

Electrical versus Gravitational Forces (Physics)
Multiple Choice help: * _____ forces between charges are enormous in comparison to ______ forces. * A. electrical, gravitational (possible?) B. gravitational, electrical (possible?) C. positive, negative (wrong, I think) D. negative, positive (wrong, I think) According to the ...
Friday, February 25, 2011 at 2:35pm by Angela

Math ( Surveying )
Need help with this problem! Thanks in advance. The ground clearance of an overhead electrical cable must be determined. Surveyor B is positioned directly under the cable (surveyor B can make a position check by sighting past the string of a plumb bob, held in his or her ...
Monday, September 20, 2010 at 4:09pm by Dale

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