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April 17, 2014

Search: A charge of -3.50 nC..

Number of results: 28,233

physics
1, Postive plate is correct. It takes work to move an electron from where it wants to go. 2. Poorly worded. If a conducting surface is at equal potential, the charge density at the point is higher due to the smaller surface area, which leads to a much higher Electric field at ...
Monday, April 11, 2011 at 11:04pm by bobpursley

math
L/s=2 Ls=50 so L=50/s then 50/s*1/s=2 s^2=25 s=5 and you figure L
Wednesday, December 9, 2009 at 9:04am by bobpursley

Math
50-37.50=p p/50 - x/100 That should help.
Friday, May 7, 2010 at 11:57pm by John

finance
Imagine a country that is operating a fixed exchange rate relative to the dollar. The currency is trading at a forward discount of 50 percent, and rumors have been circulating that the government may pursue a large devaluation. Do you expect the devaluation will be equal to 50...
Monday, September 24, 2007 at 10:18pm by Joe

physics
A particle of charge Q is fixed at the origin of an xy coordinate system. At t = 0 a particle (m = 0.690 g, q = 4.75 C) is located on the x axis at x = 20.0 cm, moving with a speed of 50.0 m/s in the positive y direction. For what value of Q will the moving particle execute ...
Thursday, February 11, 2010 at 8:41am by Sandhya

CHemistry
Is the charge of nitrogen in N2O +1? If you are talking about the oxidation state of N in N2O, yes, it is +1. Charge, to me, implies that N2O is an ionic compound and it is covalent, not ionic.
Wednesday, October 25, 2006 at 8:47pm by Alyssa

Physics
2.1*10^13 electrons will have a negative charge of 2.1*10^13 e, where e = 1.6*10^-19 C The net charge won'r be changed much at all.
Friday, November 11, 2011 at 2:54pm by drwls

math
$2.60 x500= $1300, $1300x 5.5% tax=$71.50 $1300 + $71.50= $1371.50 $1371.50 less 2% dic of $27.43 final amount is $1344.07
Saturday, May 8, 2010 at 6:54pm by Lorna

math
$2.60 x500= $1300, $1300x 5.5% tax=$71.50 $1300 + $71.50= $1371.50 $1371.50 less 2% dic of $27.43 final amount is $1344.07
Saturday, May 8, 2010 at 6:54pm by Lorna

MATH!!!!!!!!!!!!!!!!!!!!
$50 - 22.50 = 27.50 27.50 / 7 = ??
Wednesday, September 17, 2008 at 4:28pm by Ms. Sue

4th grade Math
Yes, 1/3 of 150 = 50. (50 + 50 + 50 = 150)
Monday, December 15, 2008 at 11:30pm by Psedonymous

physics
Calculate the net charge on a substance consisting of a combination of 8.9 10 13 protons and 2.610 13 electrons. The elemental charge is 1.6 10 −19 C. Answer in units of C
Sunday, November 18, 2012 at 1:43pm by sara

art
It can reach the minds and emotions of people better than printed reports can. Visual Arts Purpose and Overview Purpose of Visual Arts. The K-12 visual arts program in the public schools: ... assessment includes describing, analyzing, interpreting, judging and reflecting. ... ...
Thursday, March 26, 2009 at 4:47pm by Writeacher

Physics
PLEASE SOMEONE HELP ME WITH THIS DARN QUIZ. I'm so lost and all my teachers are too 'BUSY' to help me. :/ I'm getting so sick and tired of studying and not getting it but then having to take the blame for my instructor's folly. 2. Which of the following is a requirement that ...
Wednesday, October 17, 2012 at 6:02pm by Debbie

Math 101
1. They give two sets of information. Letting d = the daily charge, and m be the mileage charge, and c be the total charge c = d + m*x where x miles are driven 123 = 3d + 300m 216 = 5d + 600m Subtract the second from twice the first: 246 = 6d + 600m 216 = 5d + 600m 30 = d so, ...
Sunday, October 23, 2011 at 10:59pm by Steve

physics
acceleration = eE/m e is the electron charge, m is the electron mass and E is the electric field The answer should have a minus sign because an electron will accelerate in the -x direction, due to its negative charge. The natural constant "e" is always listed as a positive ...
Sunday, September 12, 2010 at 1:46pm by drwls

physics
Whoops, sorry, was thinking charge on surface of sphere. If uniformly distributed throughout the volume, then my answer is the same outside the sphere However inside the sphere you will surround chagres the will look as if they are at the center The amount you surround will be...
Thursday, February 28, 2008 at 9:19pm by Damon

physics
You got Coulomb's law wrong. You need the product of the two charges in the numerator. The test charge is attracted to both charges on opposite sides. For the net charge, you have to take the difference of the two forces.
Sunday, September 16, 2007 at 12:08am by drwls

physics
The distance between them is d = 2.41 x 10-3 m The charge on each sphere is Q The force of each sphere on the other is F = k Q^2/d^2 = 4.18 x 10-21 N Look up the Coulomb's Law constant k and solve that equation for Q. The number of electrons is N = Q/e where e is the electron ...
Wednesday, February 11, 2009 at 7:19pm by drwls

Physics
Hint: In case you have not read the definition of current, it is charge per unit time, which means the amount of transferred charge (in Coulombs) divided by how long it takes (in seconds). The unit of current is called an Ampere.
Wednesday, February 17, 2010 at 6:23pm by drwls

physics
The masses of the earth and moon are 5.98x1024 and 7.35x1022 kg, respectively. Identical amounts of charge are placed on each body, such that the net force (gravitational plus electrical) on each is zero. What is the magnitude of the charge placed on each body?
Thursday, February 10, 2011 at 4:04pm by anto99999999999999999999999999

physicss
A small cork with an excess charge of +6 . 0 μ C is placed 0 . 18 m from another cork, which carries a charge of − 3 . 2 μ C. What is the magnitude of the electric force between the corks? The Coulomb constant is 8 . 98755 10 9 N m 2 / C 2 . Answer in units...
Sunday, November 15, 2009 at 5:12pm by Anonymous

MATH
1.5 is NOT 50% 50% (per cent) means 50 per 100, or 50/100 = 0.50 So, 150% = 150/100 = 1.50 given any number as a %, simply divide by 100: 36% = 36/100 = 0.36 2% = 2/100 = 0.02 Given any fractional value, just multiply it by 100 to get a percent: .28 = 28% 1.34 = 134%
Saturday, October 26, 2013 at 5:11am by Steve

Physics
A point charge (m = 1.0 g) at the end of an insulating string of length L = 46 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 8800 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge d = 1.0 cm above the ...
Monday, January 28, 2013 at 10:40am by kjipper

physics
An infinite sheet with a negative surface charge density runs parallel to the x axis. Another infinite sheet with an equal but opposite sign surface charge runs parallel to the y axis. The difference in electric potential from the point x = +5.2 m, y = +3.1 m to the point x...
Friday, February 10, 2012 at 8:33am by Mandaleigh

algebra 2
Your uncle loaned you some money and did not charge interest. The amount you owe him at the end of each of the first 5 months is $937.50, $875.00, $760.00, and $687.00. If the pattern continues, how much will you still owe him at the end of one year?
Wednesday, February 20, 2013 at 8:48am by Lea

Math
A companys profit is described by the equation P(x) = 5x^2 + 300x + 15,000 where x is the price in dollars that the company charges for its product. What should the company charge for the product to generate the maximum profit? a.) $20 b.) $30 c.) $50 d.) $60 How to solve? ...
Tuesday, February 4, 2014 at 7:00pm by Anonymous

physics
A uniformly charged conducting sphere of 1.2 m diameter has a surface charge density of 7.1 C/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?
Saturday, January 29, 2011 at 8:20am by Ty

Physics
Divide the balloon charge, -3.1*10^-6 C, by the electron charge, -e = -1.6*10^-19 C You should get about 1.9*10^13 electrons. That's 19 trillion Roughly the national debt of the United States!
Monday, March 7, 2011 at 9:36pm by drwls

physics
The charge is Q = -10^10*e e is the electron charge, 1.6*10^-19 C You need an electric field pointed down to balance the weight of the drop. The strength of the field is given by E*Q = M*g E = M*g/Q newtons/coulomb
Thursday, July 21, 2011 at 2:19am by drwls

chemistry
No. An equation is balanced only if mass is balanced AND charge is balanced. EQuation (2) balances both. Check the charge changes to verify.
Monday, September 17, 2007 at 7:02pm by bobpursley

physics question
The sum of the emfs and potential difference around a closed loop equals zero" is a consequence of: a) Newton's third law b) Ohm's law c) Newton's second law d) conservation of energy e) conservation of charge For this question: I had picked d conservation of energy but now I ...
Wednesday, March 28, 2007 at 12:10pm by susane

PHYSICS
Treat the atmosphere as planar and use Gauss' Law. The net flux from an volume of cross sectional area A and thickness t is: (167 - 151) *A = 46 Volt/C * A That equals the charge inside the volume, divided by ε. 46 V/C*A = (charge density)*A*(thickness)/ε charge ...
Monday, October 10, 2011 at 7:59pm by drwls

statistics
Assuming a large city (so that the sample size does not affect the population probability), then the probability of a house is NOT burglarized is (1-0.05)=0.95. By the multiplication law, randomly selecting 50 houses not burglarized is P(50)=0.95^50=0.077. If you work the ...
Saturday, July 14, 2012 at 9:15pm by MathMate

Chemistry
When salt and water molecules attract, of what charge is the salt, and of what charge is the water? Thanks for explaining.
Wednesday, May 27, 2009 at 9:25pm by Andre

math
There are a total of 50 students in the Englewood band. 23 of them are boys. Let (g) represent the number of girls in the band. Which equation shows the number of girls in band? a. 50+23=g b. gx23=50 c. g-23=50 d. 50-23=g my answer is B. Is this correct?
Sunday, February 10, 2013 at 1:00pm by vera

Algrebra
How do you represent each answer as an algebraic expression using the variable mentioned? A utility company measures gas consumption by the hundred cubic feet, CCF. The company has a three-step rate schedule for gas customers. First, there is a minimum charge of $5.00 per ...
Monday, September 28, 2009 at 10:12pm by Austin

math
n = number of passengers n = 50 m = number of mens m = ( 3 / 10 ) * 50 = 150 / 10 = 15 r = the rest r = 50 - 15 = 35 w = number of womans w = ( 2 / 7 ) * r = 2 * 35 / 7 = 70 / 7 = 10 c = number of childrens m + w + c = 50 15 + 10 + c = 50 25 + c = 50 Subtract 25 to both sides ...
Tuesday, November 12, 2013 at 9:01am by Bosnian

physics electricity
An electric force moves a charge of +1.65 multiplied by 10-4 C from point A to point B and performs 6.40 multiplied by 10-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two points? (b) Determine ...
Sunday, January 3, 2010 at 11:43pm by alex

physics
Three point charges, A=2.00 uC, B=7.00 uC, C=-4.00 uC, are located at the corners of an equilateral triangle. a) Find the magnitude and direction of the electric field position of the 2.00 uC charge. b) How would the eletric field be affected if the charge there were doubled. ...
Wednesday, November 7, 2012 at 3:07pm by Ella

science
A 2.75-gram air inflated balloon is given an excess negative charge, q1 = -3.00 10-8 C, by rubbing it with a blanket. It is found that a charged rod can be held above the balloon at a distance of d = 5.80 cm to make the balloon float. In order for this to occur, what ...
Tuesday, February 19, 2013 at 9:44pm by Kels

Science-Periodic Table
Where r the elements that form ions with a positive charge located? where r the elements that form ions with a negative charge located? can someone please briefly explain this whole positive and negative charge thing to me. I kind of get it, but the informations is just not ...
Thursday, April 8, 2010 at 7:36pm by Sara

Physics
If the net force on Charge B is zero, => the electric field strength is zero at the point B (charge B location). vector E(A) +vector E(C) +vector E(D) = 0 => At the point B: Vectors E(A) and E(C) are direcred to the right => vector E(D) has to be directed to the left...
Thursday, August 8, 2013 at 7:03pm by Elena

Physics
There is no such thing as a magnetic charge. Magnetism works in closed lines from N to S and back for example. You can have a + or a - electric charge sitting alone. Both types of electromagnetic phenomena have vector fields and the forces they exert are a function of where in...
Monday, May 19, 2008 at 10:18pm by Damon

chem buffer
When the following solutions are mixed, which will act as a buffer? (check all that apply) A. 50 mL of 0.05M sodium hydroxide and 50 mL of 0.1M nitrous acid B. 50 mL of 0.1M ammonia and 50 mL of 0.1M ammonium acetate C. 50 mL of 0.1M ammonia and 50 mL of 0.05M nitric acid D. ...
Friday, October 29, 2010 at 3:16pm by janie

Chemistry
In 1909, Robert Millikan performed an experiment involving tiny, charged drops of oil. The drops were charged because they had picked up extra electrons. Millikan was able to measure the charge on each drop in coulombs. Here is an example of what his data may have looked like...
Sunday, September 11, 2011 at 6:11pm by Anonymous

calculus
You operate a bakery. You buy cakes from a supplier who charges you $5 per cake. Government regulations dictate that you can only charge a price between $10 and $20 per cake. Your research shows that if you were to charge $x per cake, you would sell 125 - x2 cakes per week. a...
Thursday, February 23, 2012 at 3:22pm by sarah

PHYSICS
The point where the fields due to A and C cancel has nothing to do with the size of charge B. It also does not depend upon where charge B started out. The point will be between A and C. Let its X-coordinate (in cm) be x. The Coulomb constant k will cancel out, and you can use ...
Tuesday, May 4, 2010 at 2:31am by drwls

Maths - check answer
On the May 1 billing date, Mary had a balance due of $970.60 on her credit card. The transactions during the following month were: May 5 Payment $400.00 May 10 Charge: airline tickets $381.00 May 22 Charge: hotel $270.60 May 25 Charge: florist $60.20 The interest rate on the ...
Tuesday, March 11, 2008 at 12:00pm by Sunny

Math
The question is that the length of a rectangle is 15 and its width is w. The perimeter of the rectangle,at most,50. Which inequality can be used to find the longest possible width? A. 30+2w<50 b. 30+2w<or=50 c.30+2w>50 d. 30+2w>or=50 so I did L=15 p=2(15)+2w<or=...
Friday, June 7, 2013 at 4:37pm by Gail

algebra
to find a percentage you do this X-number given Y-total number (X/Y)*100 so for example (25/50)*100= 50% you can also think of it this way 50*.50=25
Monday, November 30, 2009 at 4:25pm by Andy

7th grade math Ms. Sue please check
50 is 6.25% of what number? You know that the number is much larger than 50. 0.0625x = 50 x = 50 / 0.0625 x = ?
Wednesday, November 14, 2012 at 9:34pm by Ms. Sue

College Physics
The kinetic energy will be the work done on the proton which is the charge times the voltage. Since the charge on the proton is the same magnitude as on the electron, 2.7 volts should do the trick. then (1/2) (1.67*10^-27) v^2 = 2.7(1.6*10^-19 Joules/eV)
Sunday, January 31, 2010 at 4:41pm by Damon

Chemistry
In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (). Drop Charge () A 1.3810−14 B 3.2210−14 C 3.6810−14 D 4.1410−14 E 5.9810...
Friday, September 9, 2011 at 2:44pm by Jen

Math-Advanced Pre-Algebra
A computer repair shop charges a flate rate of 50$ plus $35 per hour spent repairing each computer. LEt h be the number of hours spent repairing a computer. Use function notation to write an equation that gives the total charges for repairing a compujter as a function of h. ...
Thursday, May 24, 2012 at 1:29am by Jacee

Physics
A circuit with a capacitor took .138s to discharge from its max charge Qmax to half of that max charge once the battery was removed. In this series circuit there also is one resistor with 100 G(ohm symbol). The voltage drop is 12V across the battery. a)How much time would it ...
Friday, April 4, 2008 at 2:56pm by Andrea

Geography (Ms. Sue)
Columbus, OH; Buffalo, NY; Rochester, NY; Dayton, OH; Louisville, KY; Grand Rapids, MI; Raleigh-Durham NC; Las Vegas NV; Birmingham AL; and Honolulu HI do not have sports teams.
Monday, October 21, 2013 at 9:07pm by Anonymous

Physics
A positive point charge (q = +5.4 10-8 C) is surrounded by an equipotential surface A, which has a radius of rA = 1.5 m. A positive test charge (q0 = +4.8 10-11 C) moves from surface A to another equipotential surface B, which has a radius rB. The work done by the electric ...
Thursday, September 12, 2013 at 5:35pm by Anonymous

physics
Three identical conducting spheres are located at the vertices of an equilateral triangle ABC. Initially the charge the charge of the sphere at point A is q A =0 and the spheres at B and C carry the same charge q A =q B =q. It is known that the sphere B exerts an electrostatic...
Sunday, May 12, 2013 at 10:49pm by steven lou

physics
The idea is that inside the sphere, the only charge that counts is what is inside the radius you are at. That looks like it is at the center and is the charge density times the volume inside the radius you are at. Outside the sphere, the entire charge, the density times the ...
Thursday, February 28, 2008 at 9:19pm by Damon

College Physics
A uniformly charged conducting sphere of 1.3 m diameter has a surface charge density of 8.7 C/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?
Sunday, July 8, 2012 at 9:43pm by Stephanie23-17

chemistry
D. The 3+ on Fe3+ tells you how the charge differs from its natural state. Because an electron is a negatively charged particle when one electron leaves, the charge is +1 because the ion still has the same amount of protons with one less electron.
Tuesday, November 20, 2012 at 10:18pm by Brian

math
15x+50+x =16x+50 (15x+50+x)^2=(16x+50)^2 (16x+50)^2=(16x)^2+2*16x*50+50^2= 16^2*x^2+1600x+2500= 256x^2+1600x+2500
Tuesday, April 5, 2011 at 8:19pm by Anonymous

science
Water is a polar compound. How do you know? The electronegativity (EN)of O is 3.5. The EN of H is 2.1. So the oxygen pulls the electrons a little closer to itself; therefore, O has a slightly negative charge while H is left with a slightly positive charge (due to the shift in ...
Friday, January 16, 2009 at 11:21am by DrBob222

Phys
The masses and coordinates of three spheres are as follows: 18 kg, x = 1.50 m, y = 1.50 m; 40 kg, x = -1.50 m, y = -1.50 m; 64 kg, x = 0.00 m, y= -0.25 m. What is the magnitude of the gravitational force on a 14 kg sphere located at the origin due to the other spheres?
Sunday, November 15, 2009 at 3:23pm by Lizzy

Physics
It is not certain to me that the electron "middle point" is on the line connnecting the two charges, or not. If it is not on that line, then the acceleration upward tells us that the horizontal components of the force on the charge are equal and opposite, that is no resultant ...
Monday, September 7, 2009 at 1:08pm by bobpursley

writing
My passion for Medical Coding arose due to his illness. His diagnoses for his conditon was alawys different one each day. This came with a different charge each day. We had no knowlege of how the charge was applied. I made a visited to the coding deptartment where this was ...
Monday, May 21, 2012 at 12:25pm by willie

Conservation Charge- Physics
an electron has one unit of charge. Your use of quantum is unusual, in the standard model of matter, their is a number of types of charge, and the particle that carries most is the guage boson. I doubt if your teacher meant this meaning in the use of quantum, however, it is ...
Monday, November 5, 2007 at 8:11pm by bobpursley

physicss
A small cork with an excess charge of +5.0 μC is placed 0.12 m from another cork, which carries a charge of −3.2 μC. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 109 N m2/C2. Answer in units of N.
Sunday, November 15, 2009 at 5:12pm by maria

physics
A small cork with an excess charge of +5.0 C is placed 0.14 m from another cork, which carries a charge of −3.2 C. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 109 N m2/C2. Answer in units of N
Thursday, April 19, 2012 at 2:55pm by jenny

physics
The masses of the earth and moon are 5.98 1024 and 7.35 1022 kg, respectively. Identical amounts of charge are placed on each body, such that the net force (gravitational plus electrical) on each is zero. What is the magnitude of the charge placed on each body?
Sunday, January 13, 2013 at 1:03pm by Anonymous

trig
We're getting closer to a real question. First off, it's "base" not "basic." So, now we have |NR|/|NC| = tan 42 deg = 0.900 A few more posts and we may actually have a question to answer. :-)
Monday, October 17, 2011 at 6:54pm by Steve

algebra
When thrown into the air from the top of a 50 ft building, a balls height, S, at time t can be found by S(t) = -16t^2 + 32t + 50. When t = 1, s = -16(1)^2 + 32(1) + 50 = 66. This implies that after 1 second, the height of the ball is 66 feet. When t = 2, s = -16(2)^2 + 32(2...
Friday, November 23, 2007 at 11:57pm by Patrick

PHYSICS
Three small spheres are placed at fixed points along the x-axis, whose positive direction points towards the right. Sphere A is at x = 23.0 cm, with a charge of -10.00 C. Sphere B is at x = 55.0 cm, with a charge of 2.00 C. Sphere C is at x = 57.0 cm, with a charge of -9.00...
Monday, May 3, 2010 at 7:25pm by Jay

PHYSICS
Three small spheres are placed at fixed points along the x-axis, whose positive direction points towards the right. Sphere A is at x = 23.0 cm, with a charge of -10.00 microCoulomb Sphere B is at x = 55.0 cm, with a charge of 2.00 microCoulomb Sphere C is at x = 57.0 cm, with ...
Tuesday, May 4, 2010 at 2:31am by Jay

Physics
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?
Wednesday, February 17, 2010 at 6:14pm by Anthony

Physics2
A particle of mass 47 g and charge 54 C is released from rest when it is 13 cm from a second particle of charge −15 C. Determine the magnitude of the initial acceleration of the 47 g particle. Answer in units of m/s2
Sunday, February 12, 2012 at 8:11pm by jc

Physics
A particle of charge +1.00 x 10e-6 C is 15.0 cm distant from a second particle of charge -3.00 x 10e-6 C. Calculate the magnitude of the electrostatic force between the particles.
Thursday, February 2, 2012 at 5:56pm by Anonymous

Phys.
A 6 mC charge experiences a force of 6 N directed north. What is the electric field (magnitude and direction) at the location of the charge? Would the direction still be north? And the magnitude 1000?
Friday, May 4, 2012 at 6:03pm by Alex B.

Chemistry
State whether each of the following aqueous solutions would be acidic, basic, or neutral. Include appropriate net-ionic equations to show why a given solution is acidic or basic. a) NaNO3 b)KC6H5CO2 c)50:50 mixture of C6H5CO2H+KC6H5CO2 d)(CH3NH3)Cl e)50:50 mixture of CH3NH2+(...
Saturday, March 13, 2010 at 6:03pm by Julie

Physics
Memorize this: energy= Volts*charge=E*distance From that E=Volts*g/distance direction is the direction a + test charge will go (toward the negative), away from the most positive.
Tuesday, September 7, 2010 at 4:46pm by bobpursley

Math (algerbra)
Write equations to model the situation. j=50+.01p c=p-(50+.01p) where p is the daily profit, j is Jack's salary, and c is Clay's salary Since their salaries will be the same, set j equal to c. 50+.01p = p-(50+.01p) Solve the equation for p, and you should get $102.04.
Sunday, November 11, 2007 at 9:38pm by Michael

Physics
1.There are four charges, each with a magnitude of 2.5 C. Two are positive and two are negative. The charges are fixed to the corners of a 0.29 m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square. Find the ...
Wednesday, February 7, 2007 at 10:57pm by Todd

Physics
An electric force moves a charge of +1.40 x 10^-4 C from point A to point B and performs 4.70 x 10^-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two points? ____________J (b) Determine the ...
Monday, September 3, 2007 at 8:20am by Mary

Physics
Given a line of charge in the x-axis which exists the from a to b with a charge distribution of lambda(x)= Cx(X_o-x)^2, calculate the total electric field at x_o. (X_o, C, a and b are positive; a<b<x_o)
Tuesday, April 12, 2011 at 12:47am by alejandro

Physics
Given a line of charge in the x-axis which exists the from a to b with a charge distribution of lambda(x)= Cx(X_o-x)^2, calculate the total electric field at x_o. (X_o, C, a and b are positive; a<b<x_o)
Wednesday, April 13, 2011 at 12:25am by Alejandro1

Physics
When a charge of -4 x 10 to the minus 3 coulombs is moved between two points in an electric field, 0.8 joules of work are done on the charge. The potential difference between the two points is 300 V.
Sunday, May 29, 2011 at 4:53pm by Scott

physics
two point charges +36 and -16 microcoulumb are placed 10 cm apart. at a point x, there is no resultant force on positive charge. the distance of x from +36 microcoulumb charge is
Saturday, July 2, 2011 at 11:20pm by mani

physics
Gauss Law: at r=a, no charge is enclosed, zero E at r=b, enclosed charge=Q=4/3 PI (b^3-a^3)*1.84nC, so figure E from kQ/b^2 E= 4kPI/3(b^3-a^3)*1.84E-9/b^2 at r=3b E= 4kPI/27(b^3-a^3)*1.84E-9/b^2 check all that.
Monday, February 6, 2012 at 5:47pm by bobpursley

chemistry
1)look at the units. see how this cancels out to give you columb, the SI unit of quantity of electric charge (columb/sec)*(sec) = ? columb 2) divide ? columb by charge on an electron
Saturday, September 8, 2012 at 5:29pm by TutorCat

Math
A local pizza shop sells large pies for $7 each. If the cost of the order is proportional to the number of pizzas would they charge a delivery charge per pizza or per order ?
Wednesday, December 19, 2012 at 8:40pm by Marylou :)

physics
a spherical gaussian surface of rdius R surrounds a point charge of magnitude +Q. How does the flux through the spherical surface change if the sign of the charge is reversed and the Gaussian sphere is doubled?
Friday, February 10, 2012 at 8:31am by james

physics
Three identical conducting spheres are located at the vertices of an equilateral triangle ABC. Initially the charge the charge of the sphere at point A isqA=0and the spheres at B and C carry the same chargeqB=qC=q.It is known that the sphere B exerts an electrostatic force ...
Monday, May 13, 2013 at 12:16pm by stranger

Alg 1
Let the owner's charge be $x then the assistant's charge is x-20 6x + 12(x-20) = 750 6x + 12x - 240 = 750 18x = 990 x = 55
Monday, January 30, 2012 at 12:15am by Reiny

algebra
OK. The four questions you posted are all basically the same. Here's help on this one: The baseball will land when the height is zero. So, you need to solve -16t^2 + 50t + 4 = 0 Unless you see an abvikus factoring, use the quadratic formula: for f(x) = ax^2 + bx + c, x = (-b...
Thursday, October 20, 2011 at 11:17am by Steve

Chemistry
The secret to solving these problems is to recognize what you have in solution at the point which the question addresses. Then write an equation and prepare an ICE table. Like the following which I will start but you must finish. 500 mL x 0.178 = 89.0 mmoles NaOH 500 mL x 0....
Monday, May 2, 2011 at 3:20pm by DrBob222

physics
Bees often work together for the greater good of the hive. Sometimes they can get excess charge on them. Four pairs of bees, which can be represented as identical, conducting spheres, bump into each other in the hive. Rank the bees in the order of the size of the magnitude of ...
Tuesday, August 27, 2013 at 10:42pm by Justin

Physics
Bees often work together for the greater good of the hive. Sometimes they can get excess charge on them. Four pairs of bees, which can be represented as identical, conducting spheres, bump into each other in the hive. Rank the bees in the order of the size of the magnitude of ...
Sunday, January 12, 2014 at 12:57pm by Jimmy

Math
gheee! I guess 0 + 100 = 100 1 + 99 = 100 2 + 98 = 100 but now you don't have an even number of pairs, you have 50 of those plus the 50 sitting in the middle so 50 x 100 + 50 = 5050 (I think my first method is easier)
Sunday, October 24, 2010 at 3:56pm by Reiny

physics
A sphere of radius a carries a volume charge density p=p (r/a)^2. Find the electric field inside and outside the sphere. I don't know what equation to use. Do I use electirc field due to point charge?
Thursday, February 28, 2008 at 9:19pm by Jessica

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