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July 23, 2014

Search: positive point charge q1, a second point charge q2 that may be positive or negative, a

Number of results: 35,837

physics
A point charge with charge q1 is held stationary at the origin. A second point charge with charge moves from the point (x1,0) to the point (x2,y2). How much work is done by the electrostatic force on the moving point charge? Express your answer in joules. Use k for Coulomb's ...
January 24, 2011 by Cassie

physics
A point charge with a charge of q1=2.60uC is held stationary at the origin. A second point charge with charge q2=-4.70uC moves from the point. x=0.140m, y=0 to the point x=0.230m, y=0.290m How much work is done by the electric force on q2?
February 22, 2012 by Celine

Physics Please help3
A point charge with charge q1 = 3.10μC is held stationary at the origin. A second point charge with charge q2 = -4.60μC moves from the point ( 0.160m , 0) to the point ( 0.270m , 0.255m ). How much work W is done by the electric force on the moving point charge? ...
May 21, 2014 by Josh

physics
A point charge with charge Q1 is held stationary at the origin. A second point charge with charge moves from the point (x1, 0) to the point (x2,x2 ).
January 21, 2011 by Cassie

physic
A +4 C point charge is in the x-y plane at the point (3.0 m, 0.0m) while a +10 C point charge is at the point (0.0 m, 1.0 m). (a) Express the Coulomb force on the +10 C point charge due to the +4 C charge in vector notation. (b) What is the magnitude of the force. Note: ...
January 31, 2014 by Asude

physics
A large conducting plate of area equal to 4.0 m^2 has an evenly distributed surface charge of + 3.4 micro coulomb on its surface.A point charge of mass equal to 5.3 x 10^-6 kg and carrying a charge of 1.2 nC is held at 10 cm above the center of the plate.Determine the ...
September 19, 2009 by sandhu

physics
A large conducting plate of area equal to 4.0 m^2 has an evenly distributed surface charge of + 3.4 micro coulomb on its surface.A point charge of mass equal to 5.3 x 10^-6 kg and carrying a charge of 1.2 nC is held at 10 cm above the center of the plate.Determine the ...
September 19, 2009 by sandhu

physics
Please Help, Two point charges are fixed on the y axis: a negative point charge q1 = -23 C at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other...
March 30, 2012 by matt

physics
Two point charges are fixed on the y axis: a negative point charge q1 = -22 C at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
January 6, 2011 by michelle

physics
Two point charges are fixed on the y axis: a negative point charge q1 = -22 C at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
January 6, 2011 by michelle

Physics
Two point charges are fixed on the y axis: a negative point charge q1 = -26 C at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
January 23, 2012 by Anne

Physics
Two point charges are fixed on the y axis: a negative point charge q1 = -26 C at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
January 24, 2012 by Anne

physics
Two point charges are fixed on the y axis: a negative point charge q1 = -23 C at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
March 29, 2012 by Kelly

Physics
Two point charges are fixed on the y axis: a negative point charge q1 = -26 C at y1 = +0.21 m and a positive point charge q2 at y2 = +0.30 m. A third point charge q = +8.5 C is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges ...
September 6, 2013 by Sarah

Physics (PLEASE HELP!)
Two point charges, the first with a charge of +3.2510−6 C and the second with a charge of -4.6310−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ...
April 4, 2011 by Allison

Physics
Two point charges, the first with a charge of +3.2510−6 C and the second with a charge of -4.6310−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ...
April 5, 2011 by Diddy

Physics
Two point charges, the first with a charge of +3.2510−6 C and the second with a charge of -4.6310−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ...
April 5, 2011 by mink

physics
Two point charges, the first with a charge of +3.1910^−6 C and the second with a charge of -4.3210^−6 C , are separated by 28.0 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ...
January 23, 2012 by Cooper

Physics
Charge A and charge B are 2.00 m apart, and charge A is +3.90 C and charge B is +4.00 C. Charge C is located between them at a certain point and the force on charge C is zero. How far from charge A is charge C?
July 16, 2010 by Bill

3 physics question please help quick
Two point charges of opposite sign are brought close together. Which statement best describes the field lines of the combined point charges? (Points : 1) The field lines from the positive charge point toward the negative charge. The field lines from the positive charge point ...
April 21, 2014 by Sara

Physics
An electric force of 3x10^-8N is produced from an electrostatic point charge of 4x10^-10. It is 40cm from another electrostatic point charge. What is the charge of the second point?
April 11, 2013 by Andrea

physics
A point charge Q= 4.60 uC is held fixed at the origin. A second point charge q=1.20 uC with mass of 2.80 * 10^-4 is placed on the x-axis 0.250 m away from the origin. (b) The second point charge is released from rest. What is its speed withn its distance from the origin is (i...
January 28, 2008 by J

physics
a point charge q1= -4.00nC is at a point (0.6,0.8) in the xy axis, and a second point charge q2=4.73nC is at the point (0.6,0), calculate the magnitude and direction of the net electric field at the origin due to these two points. Ive tried calculating the two separate ...
December 5, 2011 by mo

Physic
A point charge q1=-8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance of 0.2m from the orgin on the positive x-axis, and a third charge q3=12nC is located at a distance of 0.2m on the positive y-axis. Find the ...
March 14, 2012 by Nikki

Physics
Suppose a charge q is placed at point x = 0, y = 0. A second charge q is placed at point x = 6.2 m, y = 0. What charge Q must be placed at the point x = 3.1 m, y = 0 in order that the field at the point x = 3.1 m, y = 4.2 m be zero?
July 11, 2010 by laila

Physics
An uncharged spherical conducting shell surrounds a charge -q at the center of the shell. The charges on the inner and outer surfaces of the shell are respectively... a] -q,-q b]+q, +q c]-q, +q d]+q,0 e]+q, -q 2) A postive point Charge is enclosed in a hollow metallic sphere ...
February 10, 2011 by John

Physics
A)When point charges q1 = +1.5 C and q2 = +5.7 C are brought near each other, each experiences a repulsive force of magnitude 0.77 N. Determine the distance between the charges. B)Two point charges are fixed on the y axis: a negative point charge q1 = -29 C at y1 = +0.21 m ...
October 1, 2011 by Kelli

physics
Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them is the electric field zero? (a) 15 cm from charge 4q (b) 20 cm from charge 4q (c) 7.5 cm from charge q (d) 5 cm from charge q
May 11, 2011 by ashley --- HELP PLEASEE!!!

physics
Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them is the electric field zero? (a) 15 cm from charge 4q (b) 20 cm from charge 4q (c) 7.5 cm from charge q (d) 5 cm from charge q
May 11, 2011 by ashley --- HELP PLEASEE!!!

Phyiosics
Three point charges lie in a straight line along the y-axis. A charge of q1 = -9.50 C is at y = 6.30 m, and a charge of q2 = -7.20 C is at y = -4.00 m. The net electric force on the third point charge is zero. Where is this charge located? y = m
December 19, 2010 by Ed

physics
Three point charges lie in a straight line along the y-axis. A charge of q1 = -9.20 C is at y = 6.60 m, and a charge of q2 = -8.00 C is at y = -3.90 m. The net electric force on the third point charge is zero. Where is this charge located?
April 23, 2013 by wendlen

physics
Three point charges lie in a straight line along the y-axis. A charge of q1 = -9.80 C is at y = 6.00 m, and a charge of q2 = -8.20 C is at y = -4.10 m. The net electric force on the third point charge is zero. Where is this charge located?
April 29, 2013 by John Miller

Physics
A +30 C point charge is placed 32 cm from an identical +30 C charge. How much work would be required to move a +0.45 C test charge from a point midway between them to a point 11 cm closer to either of the charges?
October 16, 2013 by Rex

physics
Two point charges, the first with a charge of +3.0410−6 C and the second with a charge of -4.6310−6 C , are separated by 22.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ...
January 27, 2012 by jazz

physics
The electric field at the point x = 5.00cm and y = 0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x = 10.0cm and y = 0 the electric field points in the positive x direction with a magnitude of 16.0 N/C. Assume this electric field is produced by...
January 27, 2012 by jazz

physics
Consider three charges q1 = 6.0 C, q2 = 1.8 C, and q3 = -2.8 C, arranged as shown below. Q1 is positive and is 3 cm away from Q2. Q2 is also positive and is 2 cm away from Q3 which is negative. (a) What is the electric field at a point 1.0 cm to the left of the middle ...
April 23, 2013 by wendlen

Physics
Two particles are fixed along a straight line, separated by a distance 6.0 cm. The left one has a charge +2.0 nC and the right one has a charge of +6.0 nC. You must try to locate a point where the electric field is zero. (a) What is the location of the point? (b) How far from ...
January 21, 2013 by John

Physics
Three point charges are arranged along the x axis: q1 = −4.43 nC at x1 = 199 mm, q2 = 2.33 nC at x2 = -302 mm, and a positive charge q3 at the origin. What is the value of q3 if the net force on this point charge has magnitude 4.50 L?
February 16, 2008 by Julia

Physics
A positive charge of 3.0e-6 C is pulled on by two negative charges. One, -1.9e-6 C, is 0.045 m to the north and the other, -3.7e-6 C, is 0.030 m to the south. What total force is exerted on the positive charge? F=kqq/d^2 You would have to find the F exerted by each. The first ...
January 13, 2008 by Sarah

physics
a point charge of 3.00*10^-6C is 12.o cm distance from a second charge of -1.50*10^-6 c. Calculate the magnitude of the force on each charge?
January 18, 2013 by jayson

physics
a point charge of 3.00*10^-6C is 12.o cm distance from a second charge of -1.50*10^-6 c. Calculate the magnitude of the force on each charge?
January 18, 2013 by jayson

physics
A point charge of +1 C is located at x = −2 cm and a second point charge of −8 C is located at x = 6 cm. Where should a third charge of +1 C be placed so that the electric field at x = 0 cm is zero?
January 15, 2013 by Alyssa

SIMPLE pHYsics....
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such that the magnitude of ...
March 25, 2013 by i need help from anyone!

Physics
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such that the magnitude of ...
March 27, 2013 by Anonymous

Physics
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such that the magnitude of ...
March 27, 2013 by Steve

Physics (Electricity & Magnetism))
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such that the magnitude of ...
March 27, 2013 by Gurudev

physics E&M
I posted a question on here earlier but I wasn't able to solve from what the person had told me. An infinite line charge of uniform linear charge density lambda = -2.5 micro Coulombs lies parallel to the y axis at x = 0 m. A point charge of 3.5 micro Coulombs is located at x...
January 27, 2012 by aaron b. (again sorry)

physics
If the total positive charge is Q = 1.6210−6C , what is the magnitude of the electric field caused by this charge at point P, a distance d = 1.53m from the charge? (Figure 1) Enter your answer numerically in newtons per coulomb.
January 27, 2014 by James

physics
The electric field at the point and points in the positive direction with a magnitude of 8.00 . At the point and the electric field points in the positive direction with a magnitude of 12.0 . Assume this electric field is produced by a single point charge. What is the charge ...
February 16, 2010 by Adam

physics
Point charge 2.5 is located at x = 0, y = 0.30 , point charge -2.5 is located at x = 0 and y = -0.30 . What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point charge = 5.0 at x = 0.40 , y = 0?
January 25, 2010 by Derek Abeyta

physics
a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work.
February 22, 2008 by leesa

Physics
The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between q1 and the spot P. With q2 present, the ...
September 6, 2013 by Sarah

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
July 2, 2011 by mani

chemistry
5Fe(2+ charge) + MnO4(-1 charge) +8H(1+ charge) -> 5Fe(3+ charge) + Mn(2+ charge) + 4H2O In a titration experiment based on the equation above, 25ml of an Acidified Fe(2+ charge) solution requires 14 ml of standard .050 M MnO4(1- charge) solution to reach the equivalence ...
October 3, 2007 by corey

Physics
A 6 C charge is placed at the origin and a second charge is placed on the x-axis at x = 0.34 m. If the resulting force on the second charge is 4.0 N in the positive x-direction, what is the value of its charge?
July 14, 2011 by Cynthia

physics
A +30 C charge is placed 44 cm from an identical +30 C charge. How much work would be required to move a +0.69 C test charge from a point midway between them to a point 14 cm closer to either of the charges?
January 17, 2012 by Nick

Physics
A +35 C charge is placed 42 cm from an identical +35 C charge. How much work would be required to move a +0.55 C test charge from a point midway between them to a point 8 cm closer to either of the charges?
February 4, 2013 by Anonymous

Physics
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x=10.0 cm and the electric field points in the positive x direction with a magnitude of 16.0 N/C . Assume this electric field is produced by a single...
January 23, 2012 by Cooper

physics - DAMON
a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? so can you show me the work w/o the integrals...
February 24, 2008 by leess

physics
A positive point charge and a negative point charge have equal magnitudes. One charge is fixed to one corner of a square, and the other is fixed to another corner. On which corners should the charges be placed, so that the same potential exists at the empty corners? What is ...
July 8, 2008 by H

Physics
A thick metal slab carries a current I as shown. A uniform magnetic field B points perpendicular to the slab (and into the page). If point P on the slab is at a higher potential than point Q , what can we say about the charge carriers that produce the current in the slab? a....
December 16, 2013 by Hola

Physics
A point charge q = -2.41 nC is initially at rest adjacent to the negative plate of a capacitor. The charge per unit area on the plates is 4.67 μC/m2 and the space between the plates is 6.53 mm. What is the potential difference between the plates? What is the kinetic ...
February 1, 2012 by Ashley

physics
A 8.95 μC point charge is glued down on a horizontal frictionless table on the right. If is tied to a -6.35 μC point charge by a light nonconducting wire with length 2.5 cm on the left. The charges are placed in a external, uniform electric field with magnitude 1.65 ...
February 3, 2014 by Anonymous

physics
a point charge of -4.00nc is the origin, and a second point charge of +6.00nc is on the x axis at x=0.800m. Find the magnitude and directin of the electric field at each of the following points on the x asix : a) x =20.0 cm b) x=1.20 m c) x = -20.0 cm
February 21, 2013 by yan

physics
A sphere has a radius of 0.20 meters and has a uniform surface charge density equal to 6.3 micro coulombs per meter squared. A second point charge has a magnitude of 0.58 micro coulombs and is 0.61 meters away from the center of the sphere. Find the magnitude of the force ...
March 17, 2012 by doug

physics
A point charge of +10 micro-coulombs lies at x = -0.39 m, y = 0 m, a point charge of -5.7 micro-coulombs lies at x = +0.39 m, y = 0 m, and a point charge of +14.9 micro-coulombs lies at x = 0 m, y = -0.3 m. A point charge of +10 micro-coulombs is moves from x = 0 m, y = +0.11 ...
February 10, 2012 by Mandaleigh

Physics
A proton is moving toward a charge of + 2.8 nC. On its way in to the charge it passes Point B at 4.5 cm from the charge and then passes Point A at 1.2 cm as it gets closer to the charge. a. What is the potential difference between points B and A? b. What is the change in ...
February 10, 2011 by So Confused

physics
An electric force moves a charge of +1.85 10-4 C from point A to point B and performs 6.70 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?
March 12, 2013 by Anonymous

Physics
A point charge of charge 1 mC and mass 100 g is attached to a non-conducting massless rod of length 10 cm. The other end of the rod is attached to a two-dimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel to the y-z plane (...
May 14, 2013 by Nilesh P.

Physics
A point charge of charge 1 mC and mass 100 g is attached to a non-conducting massless rod of length 10 cm. The other end of the rod is attached to a two-dimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel to the y-z plane (...
May 15, 2013 by hans

Physics
The work done by an external force to move a -7.75 C charge from point a to point b is 25.0 * 10-4 J. If the charge was started from rest and had 4.73*10-4 J of kinetic energy when it reached point b, what is the magnitude of the potential difference between a and b?
February 22, 2010 by SHUBHANGI

Physics
Two point charges lie on the x axis. A charge of + 6.5 C is at the origin, and a charge of -1.5 C is at x = 10.0 cm. What is the net electric field at x = -2.0 cm? I found the electrical field for each charge using the equation E= k(q)/ r^2. My calculations were: For the ...
July 7, 2007 by micole

Pyhsic...Elena,please help....
A point charge of charge 1 mC and mass 100 g is attached to a non-conducting massless rod of length 10 cm. The other end of the rod is attached to a two-dimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel to the y-z plane (...
May 15, 2013 by pyhsicamateur

physics
(a) Two point charges totaling 8.50 C exert a repulsive force of 0.100 N on one another when separated by 0.839 m. What is the charge on each? smallest charge (C) largest charge (C) (b) What is the charge on each if the force is attractive? smallest charge (C) largest ...
August 24, 2013 by Justin

physics
(a) Two point charges totaling 8.50 C exert a repulsive force of 0.100 N on one another when separated by 0.839 m. What is the charge on each? smallest charge (C) largest charge (C) (b) What is the charge on each if the force is attractive? smallest charge (C) largest ...
August 26, 2013 by Justin

physics
A point charge of -4.00 is at the origin, and a second point charge of 6.00 is on the axis at = 0.850 . Find the magnitude and direction of the electric field at each of the following points on the axis. a) x=25.0cm b) x=1.10m c) x=-15.0cm
February 10, 2013 by Zac

phisycal sciences
Which of the following properties did Rutherford use in his experiment? A. the negative charge of the alpha particles and the random distribution of protons B. the negative charge of the alpha particles and the positive charge of the gold foil C. the positive charge of the ...
May 3, 2012 by david

science physics
1.) What is the Magnitude of the electrostatic force on a +5 C charge 1.75 m to the left of a -2.5 C charge? (show your work) 2.) In What direction does the force on the +5 C charge act? 3.)Calculate the magnitude of the electric field of the -2.5 C charge at the location of ...
May 14, 2013 by Todd

Physics
Two particles, one with negative charge -Q and the other with positive charge +2Q, are seperated by a distance d. Both charges lie on the x-acis with the negative charge at x=0. At what point(s) along the line joining the particles is the potential equal to zero? At what point...
July 17, 2012 by Michael

Physics
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x=10.0 cm and y=0, the electric field points in the positive x direction with a magnitude of 15.0 N/C. Assuming the field is produced by a single ...
February 7, 2010 by Katherine

physics charges. please help!
A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 uC is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the x-axis under the ...
November 12, 2012 by Matt

physics
Point X and Y are 30.0 mm and 58.0 mm away from a charge of +8.0 C. a. How much work must be done in moving a +2.0 C charge from point Y to point X? b. What is the potential difference between points X and Y? c. Which point is at the higher potential?
May 15, 2012 by myra

physics
Point X and Y are 30.0 mm and 58.0 mm away from a charge of +8.0 C. a. How much work must be done in moving a +2.0 C charge from point Y to point X? b. What is the potential difference between points X and Y? c. Which point is at the higher potential?
May 16, 2012 by myra

Physics
An electric dipole (any pair of oppositely charge point particles) lies on the x-axis, consisting of a - 2.5nC charge at x = -10 cm, and a +2.5nC charge at x=10cm. Find the electric field (a) on the x-axis, at the point (20,0) and (b) on the y-axis, at point (0,10).
April 4, 2013 by Jayflord

Physics
Three concentric rings and one point charge are in the same plane as shown in the above diagram. The linear charge densities of the rings are 1 = 2.60nC/m, 2 = -1.10nC/m, and 3 = 2.20nC/m with corresponding radii of r1 = 86.0cm, r2 = 64.0cm, and r3 = 46.0cm. The point ...
January 17, 2013 by Nick

Physics
There is an electric field at a certain point P, where initially there is no charge. A point-like object is placed at point P, and a force on the object is observed. Next the object is removed and another point-like object is placed at the same point. There is a force on this ...
September 24, 2010 by Max

PHYSICS
Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge A = -0.625placed at the origin?
September 19, 2012 by Anonymous

physics
The physics of electric field between two charges. What is the magnitude and direction of the electric field at a point midway between a -8.0 C charge and a +6.0 C charge? The -8.0 C charge is 4.0 cm to the left of the +6.0 C charge. If a charge of -2.0 C was placed at ...
April 28, 2011 by aly

Physics Please Help
A point charge of charge 1 mC and mass 100 g is attached to a non-conducting massless rod of length 10 cm. The other end of the rod is attached to a two-dimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel to the y-z plane (...
May 18, 2013 by Mathslover

Ap physics B
Four positive charges are fixed at the corners of a square, as shown above. Three of the charges have magnitude Q, and the fourth charge has a magnitude 2Q. Point P is at the center of the square at a distance r from each charge. 22. What is the electric potential at point P...
May 15, 2011 by christina

Physics
A point particle that has a charge of 12.5 C is located at x = 0, y = 0 and a point particle that has a charge q is located at x = 10.0 cm, y = 0. The electric force on a point particle that has a charge of 5.0 C at x = 20.0 cm, y = 0 is -(19.7) N . Determine the charge q.
January 29, 2013 by Kevin

Physics
A point particle that has a charge of 12.5 C is located at x = 0, y = 0 and a point particle that has a charge q is located at x = 10.0 cm, y = 0. The electric force on a point particle that has a charge of 5.0 C at x = 20.0 cm, y = 0 is -(19.7) N . Determine the charge q.
January 29, 2013 by Kevin

physics, help urgent!
charge Q = +4.5 C is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 C is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the x-axis under the ...
November 14, 2012 by Brette

Physics. Please please help!
A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 uC is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the x-axis under the ...
November 14, 2012 by Kyle

physics
Consider point charges + Q and +9Q, which are separated by 12 meters. At what point, on a line between the two charges, would it be possible that the electric field would be zero. A. There is no such point possible B. 9 meters from the +Q charge C. 9 meters from the +9 Q ...
July 21, 2009 by TJ

PHYSICS
The electric field everywhere on the surface of a thin, spherical shell of radius 0.710 m is measured to be 860 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface?nC (b) What can you conclude about the nature and ...
September 8, 2013 by gita

Physics (electricity and Magnetism)
A long straight and thin wire has a charge Q per unit length. It is also carrying a current I. A point charge is moving with a velocity v parallel to the conductor, at a distance d from it. Find the velocity v, supposing a correct direction for the current and the current ...
June 1, 2014 by John

physics
a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work and explain. i still don't ...
February 23, 2008 by leess

physics (coulombs law)
a charge +6 C experiences a force of 2mN in +x direction. a)what was the electric field there before charge was placed ? b)describe the force which a -2c charge would experience if it is located at the point in place of the +6c for a) i assumed the charge is 0 'cos there's no ...
December 8, 2012 by lola

Physics
A point charge +6.7 uC is placed at the origin, and a second charge 3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane so that the net force acting on it is zero?
January 11, 2013 by Jim

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