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August 28, 2015

Search: A +27 point charge is placed 6.0 from an identical +27 point charge. How much work would be required by an external force to move a +0.14 test charge from a point midway between them to a point 1.3 closer to either of the charges?

Number of results: 124,950

physics/biology
Determine the number of uncompensated ions (both total number and as a percentage of the bulk ions) required to establish a charge of 100mV across a membrane of a spherical cell that is 25 m in diameter. Assume that the total number of ions inside and outside the cell is .5M...
January 30, 2007 by Ann

Physics
Three charged particles are arranged on corners of a square as shown in the figure below, with charge -Q on both the particle at the upper left corner and the particle on the lower right corner, and charge +2Q on the particle at the lower left corner. (i) What is the direction...
May 21, 2015 by Anonymous

physics
3 identical charges each having charge 10 coulomb are placed at the corners of an equilateral triangle of side 20cm find the electric field at the centre of triangle
April 16, 2013 by aditi

maths
A car hire company makes the following charges: A one-off charge of 20: A charge of 25 for each day that the car is hired. A charge of 10p for each mile that car is driven. Write down a formula that gives the total cost (C) of hiring a car for D days and driving M miles...
May 9, 2007 by kat

Physics
Original Question: Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge on Sphere B. Note: ...
May 4, 2008 by Alex

Physics
Original Question: Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge on Sphere B. Note: ...
May 4, 2008 by Alex

physics
Two infinitely-long lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, -A, and goes through x=O, y=-s/2. Nothing changes with the...
October 20, 2008 by Eric

physics
Two identical small insulating balls are suspended by separate 0.23-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.70 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive charges and...
September 3, 2009 by teri

Physics
2. Charge q1 is located at (0,+30 cm). Charge q2 is located at (0, -30 cm) q1 = +25 pC q2= -75 pC A) Calculate the potential energy of the charges B) Calculate V1, the electric potential at the orgin due to charge q1, and V2, the electric potential at the orgin due to charge ...
April 12, 2011 by YoungTangerine

physics
An object has a charge of −2.4 C. How many electrons must be removed so that the charge becomes +2.8 C
January 18, 2013 by Anonymous

Physics
If the thickness of the probe in the direction of B is 1.97 mm, calculate the charge-carrier density (each of charge e).
August 2, 2014 by Thomas

physics
There are two conducting spheres of different sizes, both with the same negative charge. If they are connected with a conducting wire, the charge would therefore flow from the smaller to the larger. Am I correct? Thanks!
March 7, 2010 by Joe

Physics
A uranium nucleus (mass 238 u, charge 92e) decays, emitting an alpha particle (mass 4 u, charge 2e) and leaving a thorium nucleus (mass 234 u, charge 90e). At the instant the alpha particle leaves the nucleus, the centers of the two are 5.5fm apart and essentially at rest. ...
February 26, 2015 by Nguyen Nguyen

Physics
A rod has a charge of -2.0 C. How many electrons must be removed so that the charge becomes +3.3 C
April 19, 2010 by Arnold Manguy

English
No charge does it mean free example: Art Gallery of Queensland - No charge please help
April 4, 2009 by Cyrus

physics
An electron floats at rest above a sheet of charge with uniform charge density x. What is x in C/m^2
October 21, 2013 by Saiba

physics
The charge carried by one electron is e = -1.6 10-19 C. The number of electrons necessary to produce a charge of -1.0 C is:
March 13, 2014 by shirly

Value of a Charge of a Body (Physics 11th Grade)
What is the value of a charge of a body that carries 20 excess electrons? I think that the question asks you to pretend that something is negatively charged by 20 electrons. So I think you take the charge of an electron, which is 1.6 x 10^-19, and multiply it by 20. If you do ...
February 25, 2011 by Angela

Physics
Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in the positive direction ...
January 20, 2012 by Phil

Physics
Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in the positive direction ...
January 20, 2012 by Phil

Physics
suppose that two point charges each with a charge of +1 coulomb are seperated by a distance of 1 meter will they attract or repel ? determine the magnitude of the electrical force between them
January 16, 2013 by Quinn

Physics
suppose that two point charges each with a charge of +1 coulomb are seperated by a distance of 1 meter will they attract or repel ? determine the magnitude of the electrical force between them
January 16, 2013 by Anonymous

Physics
Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 0.70 C charge. (A = 0.70 C, B = 6.50 C, and C = -3.90 C.)
March 30, 2013 by Yannic

Please help Physics!!!
Two infinitely-long lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, -A, and goes through x=O, y=-s/2. Nothing changes with the...
October 20, 2008 by Jorge Wero

science
two small spheres lie 1.5 meters apart and carry identical charges. How large is the charge on each if a sphere experiences a force of 2.0 N.
February 24, 2015 by Matthew

Physics
two small spheres lie 1.5 meters apart and carry identical charges. How large is the charge on each if a sphere experiences a force of 2.0 N.
February 24, 2015 by Joe

MAT101
6. Suppose you have a lemonade stand, and when you charge $2 per cup of lemonade you sell 100 cups. But when you raise your price to $4 you only sell 50 cups. Write an equation for the number of cups you sell as a function of the price you charge. Denote "C" for number of cups...
February 25, 2010 by SEMA

chemistry
MnO4(aq) + Cl(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 point) iv. ...
March 10, 2012 by princess

chemistry
MnO4(aq) + Cl(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 point) iv. ...
March 10, 2012 by princess

Conservation Charge- Physics
Please help me with this question. What particle has exactly one quantums unit of charge?
November 5, 2007 by JoAnne

Physics/Chemistry
Does an electroscope losing its charge by being grounded violate the law of conservation of charge?
May 5, 2012 by Helen

Chemistry
Does Cl2 (chlorine) have a -2 charge or -4 charge since there are 2 of them?
October 26, 2009 by Holly Y.

physics
two small objects, A and B, are fixed in place and separated by 3.00 cm in a vacuum. object A has a charge of +2.00 micro coulomb , and object B has a charge of -2.00 micro coulomb. how many electrons must be removed from A and put onto B to make the elecrtostatic force that ...
April 26, 2010 by kim

pre ap physics
A) A small cork with an excess charge of +9.0x10^-6 is placed 0.13 m from another cork, which carries a charge of −3.2x10^-6. 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 of N B)Is this...
April 14, 2013 by keely

chemistry
Gallium Arsenide ---------------- The charge carrier density of GaAs at 31o C is 2.25x106 cm-3. What is the charge carrier density (in cm-3) at 175oC? (The bandgap of GaAs is 1.42 eV. ) I am trying with arrhenius relationship but get confused over "charge carrier density"
August 25, 2014 by WIlliam

science
From the origin of an electric dipole, the charge is 25(micro coulomb) and after a distance of 62cm, the charge is -16(micro coulomb). At what point from the origin the value of electric dipole will be zero.
September 2, 2013 by Anonymous

Algebra
A phone company charges $30 per month for a long distance plan plus a charge of $.05 per minute. What would the monthly charge be for someone who talked two and a half hours?
August 8, 2014 by Rebecca

Chemistry
The tripeptide is T-A-K 1. What is the overall charge of the tripeptide below pH 1.0? 2. What is the overall charge of the tripeptide at pH 12? 3. What type of intermolecular attractions could the side chains of the amino acids make with the solvent (water) at pH 7.4? (Note ...
October 6, 2013 by Jake

physics
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T, it produces a Hall voltage of 0.660 V. The thickness of the probe in the direction of B is 2.00 mm. Find the density of the charge carriers, each ...
April 9, 2011 by Rachel

physics
Two electrically-charges spheres are suspended from insulated threads a certain distance from each other. There is a certain amount of electrostatic force between them. Describe specifically (not just increase or decrease) what happens to this force in each of the scenarios ...
July 11, 2015 by allexelle

Physics
What is the electric force between a glass ball that has +4.5 10−6 C of charge and a rubber ball that has −7 10−6 C of charge when they are separated by a distance of 4.9 cm? The value of the Coulomb constant is 8.98755 109 N m2/C2.
May 8, 2013 by Michael

physicss
a small cork with a excess charge of +6.0 μC (1 μc = 10^-6 C) is placed 0.12 m from another cork, which carries a charge of -4.3 μC.... how many electrons are on the negative cork?
November 15, 2009 by abbigail

Calculus
The total charge in an electrical circuit as a function of time is given by q=t/(t^2+1) coulombs. Find the maximum charge of q.
March 10, 2012 by Candy

physics
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series: 1st - 6 micro Coulombs (positive charge) 2nd - 1.5 micro Coulombs (positive charge) 3dr - 2 micro Coulombs (negative charge) Distance between 1st and 2nd - 3cm Distance...
May 16, 2012 by andrew

physics
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series: 1st - 6 micro Coulombs (positive charge) 2nd - 1.5 micro Coulombs (positive charge) 3dr - 2 micro Coulombs (negative charge) Distance between 1st and 2nd - 3cm Distance...
May 21, 2012 by andrew

ALGEBRA
I was given a series of questions I got through all but the last point. I need help on letter L, not figuring out how to solve, just how to write it in an equation. Here is the main problem and sub problems and answers, Your company must use a transportation service to shuttle...
December 17, 2009 by anonymous

physic
An infinite uniformly-charged sheet with a = -2 x 10^-10 C/m2 occupies the yz plane. A deuteron1 is created at a point on the +x axis 5 m from the sheet. The deuteron is produced with zero kinetic energy and is free to move. a) What is the location of the deuteron at the ...
November 28, 2011 by jamii

Chemistry
What is a molecular dipole moment? A. A separation of charge characterizing a nonpolar covalent bond B. A separation of charge forming a positive and a negative end of a molecule C. The arrangement of charges around an atom in a nonpolar molecule D. A net cancellation of ...
February 20, 2015 by Abby

Physics
A battery with an emf of 10.3 V and internal resistance of 1.03 Ω carries a positive current of 0.550 A from its negative terminal to its positive terminal. (a) How long is required for 1.05 C of charge to pass through the battery? t = Q/I = (1.05)/(.550) = 1.909sec (b) ...
July 7, 2014 by Brandi

Chemistry
How is the ionic charge of a group 1A,2A, or 3A ion determined? Group IA elements have 1 electron in their outer shell. Group IIA elements have 2 electrons in their outer shell. Group IIIA elements have 3 electrons in their outer shell. These elements lose 1, 2, or 3 electrons...
January 4, 2007 by Dennis

physics
Three positive point charges of q1 = 4.0 nC, q2 = 6.4 nC, and q3 = 1.5 nC, respectively, are arranged in a triangular pattern, as shown below. Find the magnitude and direction of the electric force acting on the 6.4 nC charge.
December 17, 2010 by jesse

physics electricity and magnetism
We are told that the magnitude of the negative charge on the electron is exactly equal to the magnitude of the postive charge on the proton. But is it? Suppose that these magnitudes differ from each other by 0.000040 %. Each copper coin contains 3 X 1022 copper atoms. (a)With ...
July 1, 2010 by naveel

Physics
idential point charges of 1.7e-6 C are fixed diagonally on opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing their magnitudes. Find the sign and ...
March 15, 2009 by andrea

Science
What type of charge moves through conductors? Explain how it moves. thanks Electrons are the current carriers in metals. Electrons have a negative charge. Electrons in metals are loosly bound to atoms, so an external electric field will cause them in their random movements to ...
November 29, 2006 by Rachelle

physics/biology
Determine the number of uncompensated ions (both total number and as a percentage of the bulk ions) required to establish a charge of 100mV across a membrane of a spherical cell that is 25 μm in diameter. Assume that the total number of ions inside and outside the cell is...
January 29, 2007 by Anna

Static Electricity. 11th Grade Pre-AP Physics
Hi everyone! I need some help studying for a test on Static Electricity. I have a few review questions that I don't know how to do. Below they are numbered and in parenthesis I answered what I think you might have to do to get the answer. Please help me in any way you can. ...
February 25, 2011 by Angela

physics
consider three charges: +Q, -Q, q where the center charge is equidistnat from the other two. assum that the two Qs cannot move. you also want to charge q to be at rest. if q=-8.0 nC, find Q+ You don't have to solve it but can you lead me in the right direction to solve the ...
January 15, 2009 by jen

Physics
How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically?
October 21, 2007 by Adam

Physics
How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically?
June 25, 2010 by Richard

Math
eff cuts lawns for $20.00.next year, he will charge $4.00 more per lawn. what is the percent increase will he charge
March 8, 2012 by Marie

Easy chemistry
Whats the charge on a carbon cation?? I believe it is a positive charge, but does it have a number along with it?? not sure..
May 17, 2013 by Timofey

Eletrostatic
Three charges q, 2q, and 3q are arragend to form a equileteral triangle. A charge Q is placed at the center of the triagle. Whats the Net Force about Q. Give the modulus and the direcction of the force.
October 2, 2014 by Vinicius Bersek

math
speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of $15 + 5cents/ min.2nd,a monthly charge of $5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge. a)investigate the 3 schemes to ...
May 10, 2010 by rima

physics
You pick up a charge of one micro-Coulomb while walking over carpet, how many electrons were transferred? (Order of magnitude only) TRUE OR FALSE: If a third charge is released in the middle between the two positive charges, independent of the magnitude of the charges, it will...
January 10, 2011 by Jaden

chem- ion
naming chemical compounds. I don't really get how you get the symbol from the word or the other way around for polyotomic ions so.. here are some examples that a website gave me: this is wut the site said to do:(Its confusing to me) The name of the compound should have a roman...
October 19, 2010 by claire

PHYSICS
Humid air breaks down electrically when its molecules become ionized. this happend in an electric field |E|=3*10^6 N/C. In that field, calculate the magnitude of the electric force on an ion with a single positive charge. ..when they say a single positive charge do they mean +...
February 24, 2010 by Lauren

physics
Three charges of 5 x 10^(-6) C are placed on the vertices of an equilateral triangle of 10cm. Calculate force on each charge.
April 5, 2010 by Edwin

Pyiscal science
When nickel combines with flourine to form nickel [3] floride, the charge of the nickel ion is All of my references list NiF2 as the formula. Therefore, Ni would have a charge of +2.
December 13, 2006 by Cory

Physics
(a) How much charge does a battery have to supply to a 5.0 uF capacitor to create a potential difference of 1.5 V across its plates? How much energy is stored in the capacitor in this case? (b) How much charge would the batter have to supply to store 1.0 J of energy in the ...
February 4, 2008 by J

Physic
Determine, (at a point 10.0cm from a point charge of 100x10^-6C) a. The electric potential b. Electric field strength
December 16, 2014 by Syam

Physics
Lithium is the atom which has three protons in its nucleus and three electrons circling the nucleus.(it usuallly has 3 nuetrons as well,but they r not important in this problem.)Two of the electrons circle the nucleus at a distance 1.8* 10^-11 m (app.)The third electron is ...
February 7, 2008 by jenish

Physics
How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.
May 10, 2010 by Nina

Radioactivity
Thompson assumed that the amount of positive charge and negative charge in an atom was equal. Was this a reasonable assumption? I really do not understand this.
October 31, 2010 by Anonymous

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
November 18, 2012 by sara

science
Two tiny spheres carrying the same charge are 1.4 meters apart in a vacuum and experience an electrical repulsion of 9.6 N. What is their charge?
March 13, 2013 by Anonymous

physics
a point charge q=5.0 micro coulombs is placed at each corner of an equilateral triangle with sides .26 m in length. a. what is the magnitude of the electric field at the midpoint of any of the three sides of the triangle?
September 10, 2007 by natash

Physics
A particle with a mass of 2.010−5 kg and a charge of +2.0 microC is released in a (parallel plate) uniform horizontal electric field of 13 N/C. If the plates are 5.6 cm on each side, how much charge is on each? (in pC) From what I have so far, the formula E=(4piKQ)/A; E...
March 27, 2011 by Ben

physics
Three point charges are fixed in place in a right triangle. What is the electric force on the q = -0.7 C charge due to the other two charges? (Let Q1 = +0.79 C and Q2 = +1.5 C.)
September 1, 2014 by john

physics
1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged plates. The drops were observed with a ...
April 20, 2012 by Kristie

Physics
An electroscope is a simple device consisting of a metal ball that is attached by a conductor to two thin leaves of metal foil protected from air disturbance in a jar. When the ball is touched by a charged body, the leaves that normally hang straight down, spread apart. Why? 1...
February 7, 2013 by Tiffany

physics
Two concentric conducting spherical shells produce a radially outward electric field of magnitude 49,000 N/C at a point 4.10 m from the center of the shells. The outer surface of the larger shell has a radius of 3.75 m. If the inner shell contains an excess charge of -5.30 &#...
August 7, 2013 by zandile

Physic II
In the figure Q=4.6 nC and all other quantities are exact. What is the magnitude of the force on the charge Q? The figure is a triangle with equal sides of 1cm and 60 degree angles. Two of the corners on the bottom of the triangle has a charge of +2nC and Q is the top corner ...
January 26, 2014 by Can

Physics
An electron is accelerated through 2300 V from rest and then enters a uniform 1.90 T magnetic field. (a) What is the maximum value of the magnetic force this charge can experience? (b) What is the minimum value this charge can experience?
March 30, 2013 by Tamara

PHYSICS
Two point charges q1 &q2 seperated by a distance of 3.0 m experience a mutual force of 16x10^-15N.Calculate the magnitude of charge when q1=q2=q. What will be magnitude of force if seperation between the charges is changed to 6.0m?
June 3, 2013 by Megha

physics
What effect will be produced on a capacitor if the separation between the plates is increased? a. it will increase the charge b. it will decrease the charge c. it will increase the capacitance d. it will decrease the capacitance D A 0.25 uF capacitor is connected to a 9.0 V ...
March 14, 2009 by physics

physics
A particle has a charge of +2.2 μC and moves from point A to point B, a distance of 0.16 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric potential energy at A ...
January 30, 2013 by mageda

physics
please check these for me: If atmospheric refraction did not occur, how would the apparent time of sunrise and sunset be changed? a. both would be later b. both would be earlier c. sunrise would be later, and sunset would be earlier d. sunrise would be earlier, and sunset ...
March 12, 2009 by physics

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...
September 11, 2011 by Anonymous

physics im stuck
Two identical small insulating balls are suspended by separate 0.27 m threads that are attached to a common point on the ceiling. Each ball has a mass of 6.20 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive charges and...
August 31, 2008 by physdummy

Physics
A)Two point charges, +3.90 C and -7.50 C, are separated by 3.30 m. What is the electric potential midway between them? B)The drawing shows four point charges. The value of q is 1.3 C, and the distance d is 0.95 m. Find the total potential at the location P. Assume that the ...
October 8, 2011 by Kristi

Physics
The total charge in an electrical circuit as a function of time is given by q=t/t^2+1 coulombs. Find the maximum charge q. Please provide your reasoning.
May 3, 2012 by Liz

algebra
The cost of attending Ray's is C(r) = 1.50r + 4 and depends on a flat charge and then a charge for each ride, r. Explain the meaning of the slope in the context of this problem.
December 11, 2014 by Zyere

Physics
A capacitor is made from two parallel plates separated by a distance d, and each has area A. The capacitor holds a charge Q. (a) What is the energy stored in the capacitor? (b) A mechanical force pulls the plates apart, without changing the stored charge, until they are 2d ...
February 27, 2013 by lindsey

Pre-Algerbra
I don't really understand this and my teacher at school is no help. Can anyone explain what I'm supposed to do here? ----- Atoms contain charged particles called protons and electrons. Each proton has a charge of +1, and each electron has a charge of 1. A sulfur ion has 16 ...
October 17, 2012 by Katlyn

Physics Electric Force
Particle A of charge 2.76 10-4 C is at the origin, particle B of charge -6.54 10-4 C is at (4.00 m, 0), and particle C of charge 1.02 10-4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b...
April 11, 2013 by Alex

physics
The potential energy of a +2 x 10-6 C charge decreases from 0.15 J to 0.05 J when it is moved from point A to point B. What is the change in electric potential between these two points? Do not enter any (-) sign in your answer.
April 28, 2014 by Amanda

physics
What is the magnitude of an electrostatic force experienced by one elementary charge at a point in an electric field where the field intensity is 3.0 x 10^3 newtons per coulomb? a) 1.0 x 10^3 N b) 1.6 x 10^-19 N c) 3.0 x 10^3 N d) 4.8 x 10^-16 N
February 15, 2012 by Zen

gen. physics II
A charge of +3 C is at the origin. When charge Q is placed at 2 m along the positive x‑axis, the electric field at 2 m along the negative ‑axis becomes zero. What is the value of Q? a. ‑3 C b. ‑6 C c. ‑9 C d. ‑12 C please justify your ...
July 25, 2010 by Alinkashia

Physics
Suppose two charged conducting wires each have current I, and they're placed parallel to each other. Fins the line charge density that needs to be placed on each wire so that the electric repulsion between them balances the magnetostatic force so that they are in equilibrium.
May 7, 2015 by M

Physics
Consider a disk of radius 2.6 cm with a uniformly distributed charge of +3.6 C. Compute the magnitude of the electric field at a point on the axis and 3.3 mm from the center. The value of the Coulomb constant is 8.98755 10^9 Nm2/C2. Answer in units of N/C Compute the...
September 1, 2011 by Monica

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