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October 23, 2014

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: 98,610

electrostatic physics
Two charged particles of equal magnitude (+Q and +Q) are fixed at opposite corners of a square that lies in a plane (see figure below). A test charge −q is placed at a third corner. If F is the magnitude of the force on the test charge due to only one of the ...
February 12, 2012 by jc

pre ap physics
** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed because: ** A. charged ...
February 27, 2011 by Angela here again

physics
Two point charges 1.5 cm apart have an electric potential energy -150 mu J. The total charge is 34 nC. what are q_1 and q_2?
March 26, 2010 by mandy

physics
What are the magnitude and direction of the electric field at a point midway between a -7.0 C and a +6.0 C charge 2.5 cm apart? Assume no other charges are nearby.
November 27, 2010 by Anonymous

science
an electorn is 20 ccom away from a fixed point charge , q =-0.250uc . if it starst to move from rest , then how fast will it be moving when it is a t distance ?
July 19, 2012 by mohit

PHYSICS
A beam containing one hundred billion (i.e. 1x10^11) electrons moves perpendicula to a 4.0 Tesla magnetic field and is deflected by a 12 N force. (The electrons has a negative charge of 1.6 x 10^-19) How much total charge is contained in the beam? How quickly are these ...
April 8, 2012 by GRISSELL

+ --> a sphere --> (+)
Multiple Choice Help: ** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed ...
February 25, 2011 by Angela

physics
How much charge passes through a cross-sectional area of a copper wire in 0.8 s if I = 3.5 A? 1 C -Work equation?
May 11, 2012 by Alice

mechanics
The figure below shows a ball with mass m = 0.299 kg attached to the end of a thin rod with length L = 0.388 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough ...
November 2, 2012 by ruben

Physics
In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic ...
July 2, 2014 by Brandi

Physics
A charge of +2q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
September 2, 2007 by Mary

physics
A charge of +4q is fixed to one corner of a square, while a charge of -9q is fixed to the opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
January 23, 2010 by Anonymous

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

Math - Credits & finance charges
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 ...
March 10, 2008 by Sunny

Physics
A small bead of mass m and charge q is free to move in a horizontal tube. The tube is placed in between two spheres with charges Q = − q. The spheres are separated by a distance 2a. What is the frequency of small oscillations around the equilibrium point of the bead? You...
September 3, 2013 by Petra Tanovic

Physics
1)When two bodies are charged, the total charge before and after charging remains the same because of: A)quantization of charges B)conservation of charges C)law of induction D)coulomb's law I got C but im not sure. I couldnt find anything to state otherwise. 2)When a ...
April 9, 2008 by Jon

physics
A charge of -8.9 C is traveling at a speed of 7.8 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 60. A force of magnitude 4.0 10-3 N acts on the charge. What is the magnitude of the magnetic field?
February 5, 2011 by Anonymous

Physics please clarify
A charge of +2q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners? For Further ...
September 3, 2007 by Mary

Physics with Calc
A point charge of 1.8uC (microcoulumbs) is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?
February 5, 2011 by Robert

physics
Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4
July 17, 2011 by Chloe

physics
Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4
July 17, 2011 by Chloe

science
Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.
October 3, 2011 by jenny

physics
Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.
October 3, 2011 by jenny

Phizzics....
Both positive and negative charges produce electric fields. Which direction, toward or away from itself, does the field point for each charge?
May 15, 2012 by matin

Physics
two equal charges exert an elecrtric force on each other of 0.0385 when positioned 0.15 apart determine the magnitude of the charge on each point.
November 26, 2012 by Excelvia

science
Two points A and B are 85cm north and 60cm west of point charge of -45x10-3 respectively.Calculate the potential difference between A and B
October 13, 2013 by Minister Obonukut

physics
Three point charges are held at the corners of an equilateral triangle,if q=2 micro columb and length =3cm what is the resultant force on the +q charge
October 2, 2014 by ejekwu harmlet

physics
A particle with a charge of -5.0 μC and a mass of 4.3 x 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 18 m/s. The only force acting on the particle is the electric force. What is the potential difference VB - VA ...
February 11, 2013 by Anonymous

Physics
Two identical positive charges exert a repulsive force of 7.0 10-9 N when separated by a distance of 3.2 10-10 m. Calculate the charge of each. _C
April 26, 2013 by Mat

Physics
Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC. What is the force on a 1.2 nC charge placed at the midpoint? I have already calculated the electric field between the two rings to be ...
September 3, 2010 by David D.

physics
If you stand 3.0 m in front of a flat mirror, how far away from you would yourimage be in the mirror? 6.0 m If light waves are coherent, a. they shift over time b. their intensity is less than that of incoherent light c. they remain in phase d. they have less than three ...
March 13, 2009 by physics

physics
What does the concentration of field lines represent? Answer a. The direction that a positive test charge will be pushed. b. The direction that a negative test charge will be pushed. c. The strength of the force on a positive test charge. d. The strength of the force on a ...
October 15, 2010 by jim

physics
What does the concentration of field lines represent? Answer a. The direction that a positive test charge will be pushed. b. The direction that a negative test charge will be pushed. c. The strength of the force on a positive test charge. d. The strength of the force on a ...
October 15, 2010 by jim

chem PLEASE HELP
WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared to the size of the ...
April 14, 2011 by Sal

chemistry
What would the charge be of the ion formed by this equation? H2SeO3(aq)==> 2H(aq) + SeO3(aq) The SeO3 ion has a negative two charge.
February 26, 2007 by sarah

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

Physics
three identical 2*`0^-5C point charges are placed a the corners of an equilateral triangle pf sodes 1m. The triangle has one apex C pointing up the page and 2 base angles A and B. Deduce the magnitude and direction of the force acting at A thanks!
February 25, 2009 by Anonymous

Physics 30
A point charge q=+4.7nC is placed at each corner of an equilateral triangle with sides of 0.21m in length. a) What is the magnitude of the electric field at the midpoint of the three side of the triangle? b) Is the magnitude of the electric field at the centre of the triangle ...
April 5, 2012 by Derek

Pre Calc
A plumber charges $40 per hour for labor with a minimum labor charge of $30. For example, if she does her repairs in only 0.2 hours, then $40*0.2=$8, which is less than the minimum, so she would charge $30 for labor. We will assume she can repair any problem in one day a ...
February 6, 2012 by Maddie

thermal heat
Consider the following. (a) Find the work done by an ideal gas as it expands from point A to point B along the path shown in the figure. MJ (b) How much work is done by the gas if it compressed from B to A along the same path? MJ
April 29, 2013 by Annette

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Science-Periodic Table
describe how to verify the # of electrons in the ion of an element. Can you please correct some of my wordings in here. I don't really get how to explain it. You look at the atomic number which is the same number of protons as electrons; but if there is a positive ion charge, ...
April 8, 2010 by Sara

Physics
Three charged particles form a triangle: particle 1 with charge Q1 = 84.0 nC is at xy coordinates (0, 4.60 mm), particle 2 with charge Q2 is at (0, -4.60 mm), and particle 3 with charge q = 40.0 nC is at (6.40 mm, 0). What are the x component and y component of electrostatic ...
January 29, 2012 by Tyler

Business math
what the rebate of the finance charge and payoff would be if the pickup truck loan were paid off after 27 months instead of 60. Total of monthly payments 60 x 194.38. I don't know how to get the total finance charge
November 14, 2010 by Rebecca

Physics(please help, I'm stuck)
A particle with a charge of -1.4 μC and a mass of 2.9 x 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 22 m/s. The only force acting on the particle is the electric force. What is the potential difference VB - VA ...
September 12, 2012 by Alex

Physics
a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume that the rock slides ...
October 23, 2012 by Frankie

science
two spheres carrying charge q are hanging from a same point of suspension with the help of threads of length 1 m in a space free from gravity . the distance between them is?
July 9, 2012 by Juli

Physics
two equal charges exert an elecrtric force on each other of 0.0385N when positioned 0.15m apart determine the magnitude of the charge on each point.
November 26, 2012 by Nina

Physics
Two identical balls each have a charge of -7.5x10^-6C. The balls hang from identical strings that are 8 from the vertical because of the repulsive force between the charged balls. The balls are separated by a distance of 10cm. What is the tension in one of the strings? What ...
January 31, 2013 by Physics...

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
What force exists between a positive charge of 2.6 x 10-6 C and a negative charge of 4.2 x 10-5 C if they are separated by 8 cm?
May 27, 2014 by Alicia

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

AP Physics
A small block with mass 0.035 kg slides in a vertical circle of radius 0.425 m on the inside of a circular track. During one of the revolutions of the block, when the block is at the bottom of its path, point A, the magnitude of the normal force exerted on the block by the ...
March 22, 2013 by Hannah

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

Physics
An equipotential surface that surrounds a +2.7 x 10^-7 C point charge has a radius of 0.13 m. What is the potential of this surface?
September 1, 2007 by Mary

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
A wire of radius one meter is centered on the origin in the xy plane. This wire carries a total charge of +Q. Another wire of length two meters runs along the z-axis and is centered at the origin. It carries total charge -Q. What is the electric field vector at any point on ...
April 20, 2012 by allan

mathematics
using a graph plot the following points: point 1 (1,0), point 2 (1,-1), point 3( 1,-2), point 4(2,-2)draw lines to connect from point 1 to point 3 to point 4, the lines you have just drawn most resemble which of the following letters of the alphabet? x, o, n, or l.
May 17, 2010 by patricia

Chem
In procedure B2, you will titrate a saturated solution to find out how much of the anion dissolved. Assume you we're able to dissolve about 0.12g of potassium hydrogen tartrate in 25.0 mL of water. For the titration, you will use 10.00mL of this sample. How many mL of 0.0500M ...
March 8, 2013 by K

Physics
There are two positive charges (+4C on the left and +6C on the right) that are both separated by an arbitrary distance. In order not to experience any net electric force where would you place the third charge. I say to the left of the +4C charge am i right?
August 6, 2009 by Josh

KESHA
A surveyor must divert her path from point C by proceeding due south for 300 ft to point A. The surveyor determines that point B, which is due east of point C, is N49E from point A. What is the distance from point C to point B? A. 350 ft B. 375 ft C. 360 ft D. 370 ft
April 28, 2012 by PAM

physics
An electric dipole lies on the x-axis, consisting of a -2.3nC charge at x = -11cm and a +2.3nC charge at x = 11cm . Part A Compute the electric field at the point (16cm , 0). Find the magnitude of the electric field. Express your answer to two significant figures and include ...
February 4, 2014 by jrfannin

Physics
Two insulated charged metallic spheres A & B have their centres separated by a distance of 50cm in air. Calculate the force of electrostatic repulsion between them. If the charge on each is +5.0*10^-8c. The radii of A & B are negligible compared to their distance of separation...
July 9, 2011 by Abdullahi

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
What is the magnitude of the force a +29 \mu C charge exerts on a +3.5 mC charge 35 cm away?
January 22, 2010 by cach

physics
What is the magnitude of the force a +23 C charge exerts on a +3.5 mC charge 49 cm away?
January 25, 2011 by Jose

Physics
What is the magnitude of the force a +29 charge exerts on a +3.3 charge 48 away?
January 26, 2013 by Allison

Chemistry
Suppose that 30.0 mL of 0.20 M C6H5COOH(aq) is titrated with 0.30 M KOH(aq). (a) What is the initial pH of the 0.20 M C6H5COOH(aq)? (b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? (c) What volume of 0.30 M KOH(aq) is required to reach halfway to the ...
November 3, 2010 by Alania

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

physics
Two equipotential surfaces surround a +1.61 10-8-C point charge. How far is the 191-V surface from the 68.0-V surface?
September 8, 2009 by amber

Physics
A small cork with an 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. a. What is the magnitude of the electric force between the corks? b. Is this force attractive or repulsive? c. How many excess ...
March 7, 2014 by Luke Skywalker

Physics
how much work is required to lift a 98-N block of ice if A) it is lifted a vertical distance of 5-m.? B) you push the same block of ice up a 7-m long ramp using in acompare to the work required in b.? C) How does the work required in A compare to the work required in B.? D) ...
November 7, 2010 by Tyler

Chemistry
a)How much would the freezing point change in a 2.5m solution of phenol in benzene? (freezing point of phenol is 7.40 degrees C, freezing point of benzene is 5.12 degrees C) b)How much would the boiling point change in a 1.0m solution of magnesium chloride in ethanol? (boiling...
May 3, 2010 by Danny

Physics
Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q. Find the magnitude of the net electric force exerted on a charge +Q, located at the center of the square, for the following arrangement of charge: the ...
January 23, 2012 by Cooper

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
Three point charges, A = 2.2 C, B = 7.5 C, and C = -3.9 C, are located at the corners of an equilateral triangle as in the figure above. Find the magnitude and direction of the electric field at the position of the 2.2 C charge.
September 17, 2010 by chuck

Physics II w/ Calculus
A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
February 5, 2011 by Scott

College Physics
A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
February 6, 2011 by Scott

physics
A 5.0 {\rm nC} point charge sits at x = 0. At the same time, a 3100 {\rm N/C} uniform electric field (created by distant source charges) points in the positive x-direction.
February 24, 2012 by Anonymous

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

physics urgent!
The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 F, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. What is the current in the circuit at the moment the circuit is ...
November 12, 2011 by sonia

physics
You exert a force of 325N on the ball and it compresses the spring 44.5cm. ... Charge B (-5.0*10^-6) is at the origin; charge c (+4.0*10^-6) has coordinates (5 ,0),
November 7, 2010 by Anonymous

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
What is the key ingredient for electromagnetic induction? A) Motion.B) Energy.C) Force.D) Magnetic charge.E) Electric charge.
April 17, 2012 by Phillip

physics
An object with a charge of +6.0 C is 0.30 m from a second object and experiences an attractive force of 1.80 N. What is the magnitude of the charge on the second object? (C = 1.0 10-6 C) (Answer: -3.0 C) The answer is provided but I don't know how to work it out.
April 15, 2013 by traevon

physics/calc
A worker on scaffolding 75 ft above the ground needs to lift a 500 lb bucket of cement from the ground to point 30 ft above the ground by pulling on a opre weighing .5 lb/ft. how much work is required? I know to use the Work integral, but im not sure wat equation to use
March 31, 2008 by Jessica

Physics
Two equipotential surfaces surround a +1.63 10-8-C point charge. How far is the 204-V surface from the 81.5-V surface? Answer in m.
February 4, 2013 by Elizabeth

physics
If the electrical field due to a point charge is .000602N/C what is the magnitude of the field (N/C)3.51 times as far away?
May 19, 2013 by angela

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