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December 21, 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: 100,996

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
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
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 - 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 +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
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, math
Part A & B are 0.10m apart. A point charge of +3.0*10^-9C is placed at A and a point charge of +1.0*10^-9C is placed at B. X is a point on the straight line through A and B. If a third charge C or charge 1.5*10^-9 is placed at X, where must X be for the resultant force to be ...
September 14, 2014 by joey

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
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
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!!!

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
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search ...
February 23, 2008 by leesa

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

network analysis
Point A and B are 0.1m apart. A Point charge of +3.0*10^-9 c is placed at A and a point charge at -1.0*10^-9c B. X is the point on the straight line between A and B where the electric potential is zero. calculate the distance AX
September 21, 2014 by Felix

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
Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be done on the electron...
September 29, 2010 by melody

Physics
Charge A has a charge of +2 C. Charge B has a charge of - 3 C and is located 1 meter to the right of A. Charge C is located 1 m to the right of charge Band has a charge of -1C. If a fourth charge (Charge D) is placed 4 m to the right of Charge B, How much charge must it ...
August 23, 2014 by Jeff

physics
Two point charges are placed on the x axis as follows: Charge q1= +4.00 nC is located at x= 0.200 m, and charge q2= +5.00nC is at x= -0.300 m. What are the magnitude and direction of the net force exerted by these two charges on a negative point charge q3= -0.600 nC placed at ...
January 21, 2008 by Jen

Physics 112
Three point charges with values = 4.00 , = 1.00 , and = 7.00 are placed on three consecutive corners of a square whose side measures = 5.00 . Point A lies at the fourth corner of the square, diagonally across from . Point B lies at the center of the square. What are the values...
February 11, 2011 by Margaret

why doesn't anybody ever help me.
1. three point charges, q1, q2, q3, lie along the x-axis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^-6 C, q2 = +1.5 X 10^-6 C and q3 = -2.0 x 10^-6 C. my answre is 46.8 N to the right. is that correct? 2. a...
February 14, 2008 by todi

physics- check
1. three point charges, q1, q2, q3, lie along the x-axis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^-6 C, q2 = +1.5 X 10^-6 C and q3 = -2.0 x 10^-6 C. my answre is 46.8 N to the right. is that correct? 2. a...
February 14, 2008 by todi

physics
Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be done on the electron...
October 2, 2010 by melody

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

physics 2
two points of 2 C and a 5 C are 10 meters apart. A third point charge of 6 C is placed between them. at what distance from 2 C charge must the 6 C charge is placed, in such way that stay in equillibrium?
May 26, 2013 by jemver

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
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
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

science
A point charge of 0.5C is brought from infinity to a point A in free space.how much work is required to this?
October 10, 2014 by benjamin

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

physics
charge A has a charge of 2C, Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of charge B and has a charge of -1C. if a fourth charge (charge D) is placed 4 meters to the right of charge B, how much charge must it ...
February 11, 2013 by chris

physics
Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...
August 8, 2013 by Jason

Physics
Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...
August 8, 2013 by J

science
Two point charges are placed on the x-axis a follows: charge q1= +4.00nC is located at x=0.200m, and charge q2= +5.oonC is at x=-0.300m. What are the magnitude and direction of the total force exerted by these two charges on a negative point charge q3= -6.00nC that is placed ...
December 13, 2012 by jay

physic
two point charges are placed on the x axis as follows: charge q1 +4.00nc is located at x = 0.200m, and charge q2 = +5.00nc is at x = -0.300m what are the magnitude and directionof the net force exerted by these two charges on a negative point charge q3 = -0.600nc placed at the...
February 12, 2013 by yanis

Physics; Elect.
1. A charge (uniform linear density=9.0 nC/m) is distributed along the x-axis from x=0 to x=3.0m. Determine the magnitude of the electric field at a point on the x axis with x=4.0m. a)81 N/C b)74 N/C c)61 N/C d)88 N/C e)20 N/C 2. A +2nC point charge is placed at one corner of ...
February 1, 2011 by Thomas

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
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
A 5.0*10^-6C point charge is placed at the 0.00 cm mark of a meter stick and a -4.0 *10^-6C point charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field due to these charges equal to zero?
May 29, 2013 by I need an answer now

university
A 5.0-C point charge is placed at the 0.00 cm mark of a meter stick and a -4.0-C point charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field due to these charges equal to zero?
September 19, 2014 by zainab

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

physics2
A charge of -6.5 micro-Coulombs is placed at the origin of a coordinate system. Another charge of -7.6 micro-Coulombs is placed at x = +0.29 m, y = +0.17 m. A third charge of +14 micro-Coulombs is placed at x = -0.29 m, y = 0 m. What is the magnitude of the total electric ...
January 29, 2011 by kelly

physics
A charge of +2.4 10−9 C is placed at the origin, and another charge of +4.2 10−9 C is placed at x = 2.5 m. Find the point (coordinate) between these two charges where a charge of +3.1 10−9 C should be placed so that the net electric force on it is zero.
May 1, 2012 by Ashley

Physics
A charge of +2.4 10−9 C is placed at the origin, and another charge of +4.2 10−9 C is placed at x = 2.5 m. Find the point (coordinate) between these two charges where a charge of +3.1 10−9 C should be placed so that the net electric force on it is zero.
May 1, 2012 by Ashley

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
Find the total electric force on a +q charge placed at x_0 due to the line charge and the point charge
April 12, 2011 by alejandro

Physics
Find the total electric force on a +q charge placed at x_0 due to the line charge and the point charge
April 13, 2011 by Alejandro1

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
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
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

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
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

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
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 +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
Two point charges, q1 and q2, are placed 0.30 m apart on the x-axis, as shown in the figure above. Charge q1 has a value of 3.0 x 109 C. The net electric field at point P is zero Q: Calculate the magnitude of charge q2. Q: Calculate the magnitude of the electric force on q2 ...
February 23, 2012 by Kayberlynn

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
A charge q1 = 5.00nC is placed at the origin of an xy-coordinate system, and a charge q2 = -2.00nC is placed on the positive x axis at x= 4.00cm . If a third charge q3 = 6.50nC is now placed at the point x= 4.00cm , y= 3.00cm find the x and y components of the total force ...
September 7, 2014 by Molly

physics
A charge of 1.5uC is placed at the origin, and a charge of 3uC is placed at x = 1.5m. Locate the point between the two charges where the electric field is zero? Q1 P Q2 x------------*-----------. 0 <---------1.5m----------->
February 28, 2010 by morgan

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

physics
In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?
January 13, 2013 by adam

Physics
What is the electric force between a +2 C point charge and a 2 C point charge if they are separated by a distance of 5.0 cm? Show your work. (C = 1.0 106 C)
May 22, 2013 by Staci

physics 2
Two identical positive charges are placed 15 cm apart and the magnitude of the electric force between them is 5.4 Newtons. They then exchange charge (one charge loses some electrons and the other gains the same amount of electrons), but they both still remain positive. After ...
January 18, 2013 by Jessica

physics PLEASE HELP
In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?
January 10, 2013 by Anonymous

physics PLEASE HELP
In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?
January 12, 2013 by Anonymous

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 point charges, 5.0 C and -2.0 C, are placed 5.0 cm apart on the x axis, such that the -2.0 C charge is at x = 0 and the 5.0 C charge is at x = 5.0 cm. At what point(s) along the x axis is the electric field zero? I'm not exactly sure how i should go by solving this.
March 9, 2010 by Chris

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
Chapter 18, Problem 13 Two point charges are fixed on the y axis: a negative point charge q1 = -26 μC at y1 = +0.17 m and a positive point charge q2 at y2 = +0.35 m. A third point charge q = +9.5 μC is fixed at the origin. The net electrostatic force exerted on the ...
November 18, 2014 by namabia

physics
Two point charges are fixed on the y axis: a negative point charge q1 = -26 μC at y1 = +0.17 m and a positive point charge q2 at y2 = +0.35 m. A third point charge q = +9.5 μC is fixed at the origin. The net electrostatic force exerted on the charge q by the other ...
November 19, 2014 by namabia

Physics
The work done by an electric force in moving a charge from point A to point B is 3.75 x 10^-3 J. The electric potential difference between the two points is VA - VB = 54.6 V. What is the charge? Not sure if I did this correctly: I believe this is an equation: deltaV= (-Wab)/q ...
July 25, 2012 by Dan

Physics
Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same sign but different ...
November 7, 2013 by sio

Physics
Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same sign but different ...
November 8, 2013 by sio

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

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
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
Identical point charges of +2.9 C are fixed to three of the four corners of a square. What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?
September 4, 2013 by Amanda

Physics
Identical point charges of +1.1 C are fixed to three of the four corners of a square. What is the magnitude q of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?
June 13, 2014 by Bin

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 question help/ check my answers
The middle two question please check my answers and tell me if I am correct or if there is something I am missing. The first and the last question I need help to understand and complete it. Thank you in advance!!! 1. What is the electric force between a +2 C point charge and ...
May 8, 2014 by Brianna

physics ..PLEASE HELP ASSIGN DUE SOON :(
A charge is to be placed at the empty corner to make the net force at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner if the three charges have the same charge of +7.63 μC?
October 15, 2012 by joane

Physics
a charged particle is in point (2, 3, 8) and has a charge Q1 = 5x10-10C. Another particle is at (5,7,0) and has a charge Q2 = 3x10-10C. Calculate how much work needed to move the first particle to the point (0, -7.2) using the electric field
May 12, 2012 by Filip

Physics
A point charge Q1=-2C is located at x=0, and a point charge Q2=-8C is placed at on the x -axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,E(x)=E(x)x^ , at various points along the -axis. (a)What is E(x) (in N/C) for x -68.0 m...
February 25, 2013 by Anonymous

Physics ASAP PLease
Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same sign but different ...
November 8, 2013 by sio

physic
two point charges are placed on teh x axis as follows: charge q1 = +4.00 nc is located at x = 0.200 m, and charge q2 = +5.00 nc is at x = -0.300 m what ae the magnitude and direction of teh net force exerted by these two charges on a negative point charges q3 = -0.600 nc ...
February 13, 2013 by yanis

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