Tuesday
May 3, 2016

# Search: A uniform electric field of magnitude 450 V/m is directed in the positive x-direction. A 20 &micro;C charge moves from the origin to the point (x, y) = (20 cm, 50 cm).

Number of results: 52,170

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

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

physics
A charge q1 = 5 nC is located at the origin of xy copedinate system, and a charge of q2 = -2 nC is located on the y-axis at y =.30m. Find the components of the electric field and its magnitude and direction at a point P with coordinates (.40m, .30m).
March 9, 2016 by micah

physics
1. what happens to the field strength when you halve the distance between two charges? 2. A positive charge of 3.5 uC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge. 3. Three...
May 29, 2012 by carol

physics
Which of the following statements about electric field lines due to static charges are true? (Select all that apply.) Electric field lines can never cross each other. Static charges can create closed loop electric field lines that do not begin or end on a charge. Wider spacing...
March 16, 2015 by mathew

physics
Consider the electric field created by a very long charged line of negative linear charge density -2.50 nC/m. A small positive point charge of 12 mC moves from a distance of 7 cm to a distance of 18 cm. In mJ, how much work is done by the electric field? Hint: The electric ...
February 17, 2011 by Anonymous

physics
Two point charges, 4.0×10-6 C and -1.0×10-6 C, are located on the x axis at = -1.0 cm and = 3.0 cm. (a) Determine the electric field at the origin. (b)Determine the x coordinate of a point on the positive x axis where the electric field is zero; i.e., a test charge placed at ...
January 30, 2011 by help

physics
Given two particles with 2.00 micro coulomb charges as shown and a particle with a charge q=1.28x16-18C at the origin. (A)What is the net force exerted by the two 2.00 micro coulomb charges on test charge q? (B)What is the electric field at the origin due to the two 2.00micro ...
September 21, 2009 by sandhu

A foam ball of a mass of 0.150 g carries a charge of -2.00 nC. The ball is in a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

Physics
Consider the electric field created by a very long charged line of negative linear charge density -2.50 nC/m. A small positive point charge of 8 mC moves from a distance of 9 cm to a distance of 17 cm. How much work is done by the electric field? Hint: The electric field for a...
February 12, 2010 by Susie

physics
Two point charges are placed on the x axis. (Figure 1) The first charge, q1 = 8.00nC , is placed a distance 16.0m from the origin along the positive x axis; the second charge, q2 = 6.00nC , is placed a distance 9.00m from the origin along the negative x axis. Calculate the ...
February 4, 2014 by jrfannin

physics
A point charge of -4.00nC is at the origin, and a second point charge of 6.00nC is on the axis at x = 0.800m . Find the magnitude and direction of the electric field at each of the following points on the axis. x_2 = 17.0cm, x_3 = 1.30m , x_4=-17.0cm
September 12, 2008 by Erin

physics
a positive point charge q sits at the center of a hollow spherical shell. The shell, with radius R and negligible thickness, has net charge -2q. find an expression for the for the electric field strength (a) inside the sphere, r<R (b) outside the sphere, r>R. in what ...
September 16, 2009 by jerry

Physics
A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in potential energy associated ...
September 16, 2010 by Max

physics
A small droplet of oil with mass of 1.84×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 6625 N/C. Is the excess charge on the droplet positive or negative? NEGATIVE b.How many excess elementary charges reside on the droplet...
September 1, 2011 by TP

physics
Please Help, Two point charges are fixed on the y axis: a negative point charge q1 = -23 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 µC 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 µC at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 µC 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 µC at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 µC 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 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC 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 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC 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 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 µC 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 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.30 m. A third point charge q = +8.5 µC 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
1) 2 spheres of equal diameters have 15 micro coulomb charge and -10 micro coulomb charge respectively. if they are placed 5cm apart what will be the force of attraction between them? 2) a charge of .5 micro coulomb is placed in an electric field whose intensity is 4x10^5n/c...
October 10, 2010 by Deyo

physics-E&M
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 = 2.5 m, y = 3.5 m. Find the x- and y-components of the electric field at x = 3.5 m, y = 3.0 m. So...
January 27, 2012 by aaron b.

physics
There is a very large horizontal conducting plate in the x-y plane (consider it infinitely large). Its thickness is h . The charge densities on the upper and the lower surfaces are both equal to +σ. The goal of this problem is to find the electric field (magnitude and ...
February 27, 2013 by Anonymous

physics
I need help confirming my answers: 1) The work done on an electric charge equals a) IR b)q/t c)Vq d) It I think it's C.(Vq) 2) The direction of an electric field is the direction that a ___ test charge will move when placed in the field. a)negative b) positive c) neutral I ...
April 7, 2011 by Katie

physics help
I need help confirming my answers: 1) The work done on an electric charge equals a) IR b)q/t c)Vq d) It I think it's C.(Vq) 2) The direction of an electric field is the direction that a ___ test charge will move when placed in the field. a)negative b) positive c) neutral I ...
April 10, 2011 by Katie

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
A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 7840 N/C. The mass of the water drop is 3.84 10-9 kg. (a) Is the excess charge on the water drop positive or negative?
September 3, 2009 by amber

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
There is a very large horizontal conducting plate in the x-y plane (consider it infinitely large). Its thickness is h . The charge densities on the upper and the lower surfaces are both equal to +σ. The goal of this problem is to find the electric field (magnitude and ...
February 25, 2013 by P

Physics II
An electron with an initial speed of 5.0 ✕ 105 m/s enters a region in which there is an electric field directed along its direction of motion. If the electron travels 9.0 cm in the field before being stopped, what are the magnitude and direction of the electric field?
January 24, 2016 by Beat

walter
A positive charge of 1.5x10^-8 C experiences a force of 0.025 N to the left in an electric field. What are the magnitude and direction of the field?
March 8, 2012 by george

Physics
In designing a velocity selector that uses uniform perpendicular electric and magnetic fields, you want to select positive ions of charge +5e that are traveling perpendicular to the fields at 8.75 km/s. The magnetic field availabe to you has a magnitude of 0.550 T. (a) What ...
February 18, 2008 by J

physics
a ball with a mass of 0.150 g and positive charge of q=41.2 C is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of =22.0o from the vertical. What is the magnitude of the electric field?
August 25, 2010 by Matt

Physics
Imagine a very large nonconducting plate that has a uniform surface charge density σ =1 μC/m2; it also shows a point charge Q = -3 μC at distance d = 0.3 m from the plate. Both are fixed in place. We choose the origin of an x-axis at Q. At what positive ...
September 19, 2012 by Katie

physics
A uniform electric field E in the x-direction is produced by an appropriate charge configuration. A thin sheet of charge s per unit area is placed perpendicular to the x-direction at x = 0. If the initial charge configuration is assumed to be undisturbed by the presence of the...
June 17, 2009 by Sandhya

physics
An object having a net charge of 18.2 μC is placed in a uniform electric field of 790 N/C directed vertically upward, i.e. in the direction opposite gravity. What is the mass, in grams, of this object if it "floats" in the field? (Assume g = 9.80 m/s2.)
January 21, 2015 by Serena

physics
What must the charge (sign and magnitude) of a particle of mass 1.47g be for it to remain stationary when placed in a downward-directed electric field of magnitude 690N/C ? Use 9.81m/s2 for the magnitude of the acceleration due to gravity. PART B What is the magnitude of an ...
February 4, 2014 by jrfannin

science
A positive charge of 3.50 µC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge. (remember E = Fon q' / q', and 1 µC = 1.00 x 10-6 C) a. 8.6 x 105 toward the south c. 1.2 x 106 ...
October 20, 2012 by john smith

physics
An electron is projected with an initial speed of (1.90x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The electron enters the ...
January 31, 2016 by jack

Physics
PLEASE HELP WITH AS MANY AS POSSIBLE... I AM TERRIBLY CONFUSED. 1. A charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 200 N/C. The electrical potential energy of the charge decreases by 9.69095 × 10−19 J as it moves. ...
February 16, 2010 by Jonathan

college gen. physics II
38. A proton initially moves left to right long the ´‑axis at a speed of 2 ´ 103 m/s. It moves into an electric field, which points in the negative ´ direction, and travels a distance of 0.2 m before coming to rest. If the proton's mass and charge are 1.67 ´ 10‑27 ...

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 10–9 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 (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
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
2) A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 8.6 x 10^-23 kg·m/s from 2.4 x 10^-23 kg·m/s in a time of 5.7 x 10^-6 s. What is the magnitude of the electric field? 3) A uniform ...
September 14, 2006 by Kevin

Physics
An electron that has velocity v = (3 x 105 m/s) and moves along positive x direction through the uniform magnetic field B = (0.8T) which is along the positive z direction. a. Find the force on the electron (magnitude and direction). (e = - 1.6 x 10-19 C, m=9.1 x10-31 kg) b. ...
April 25, 2011 by asif

Physics
A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge d = 2.0 cm above the ...
February 24, 2012 by Millie

Physics
A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge d = 1.0 cm above the ...
February 17, 2016 by Cici

Physics
A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge d = 1.0 cm above the ...
February 17, 2016 by Anonymous

Physics
A point charge Q1=-2 microcoulomb is located at x=0, and a point charge Q2=+8 microcoulomb, is placed at x=-0.5 on the x axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,at various points along the x axis. a)What is electric ...
February 25, 2013 by Phy

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
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

phys urgent!
A particle leaves the origin with a speed of 2.4 times 10^6 m/s at 38 degrees to the positive x axis. It moves in a uniform electric field directed along positive y axis. Find Ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron. I don't...
September 2, 2014 by kenzie

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
q1= 25 pC q2 = -75 pC A) calculate the magnitude of the electric force between the two charges B) Is the force attractive or repulsive? C) calculate the magnitude and direction of E1 *( there is an arrow above E1) , the electric field at the orgin due to charge q1. D) ...
April 12, 2011 by Angela Britt

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

physics
Two very large parallel sheets are 5.00 cm apart. Sheet A carries a uniform surface charge density of -9.00 microcoulombs per meter squared, and sheet B, which is to the right of A, carries a uniform charge of -11.6 microcoulombs per meter squared. Assume the sheets are large ...
January 25, 2010 by AE

physics
Consider three charges q1 = 6.0 µC, q2 = 1.8 µC, and q3 = -2.8 µC, 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
1. Three particles with charges of +11 mC each are placed at the vertices of an equilateral triangle with sides of 15.0 cm. What is the magnitude and direction of the net force on each particle? 2. A proton is released in an uniform electric field and it experiences a force of...
January 4, 2010 by Sasha

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
the region 0 < r < r1 is a charged insulating sphere with uniform charge density _E, the region r1 < r < r2 contains free space, and the region r2 < r < r3 is an insulating spherical shell with uniform charge density ��_E. What is the electric ...
September 23, 2008 by al

physics
A 3.0 mC point charge is placed in an external uniform electric field of 1.6×10^4 N/C. At what distance from the charge is the net electric field zero?
February 14, 2010 by jane e.

physics
a point charge q2 equals negative 2.1 micro C is fixed at the origin of a coordinate system. another point charge q1 equals 4.1 micro C is initially located at point p a distance d1 equals 6.1 centimeters from the origin along the x axis
February 8, 2012 by john

physics
An object with a net charge of 35 µC is placed in a uniform electric field of 643 N/C, directed vertically. What is the mass of the object if it floats in the electric field?
February 5, 2010 by carla

physics
An object with a net charge of 21 µC is placed in a uniform electric field of 590 N/C, directed vertically. What is the mass of the object if it "floats" in the electric field?
April 15, 2011 by Shannah

Physics
An object with a net charge of 20 µC is placed in a uniform electric field of 627 N/C, directed vertically. What is the mass of the object if it floats in the electric field?
April 20, 2015 by Joey

Physics
An electron is projected with an initial speed of (1.6x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The electron enters the ...
February 5, 2013 by Kevin

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 µC point charge and ...
May 8, 2014 by Brianna

Physics
What is the magnitude of the electric field at a point midway between a -5.1 microC and a +6.1 microC charge 10cm apart? Assume no other charges are nearby. What is the direction of the electric field?
January 27, 2012 by Mike

physics
Two spheres are mounted on identical horizontal springs and rest on a frictionless table, as in the drawing. When the spheres are uncharged, the spacing between them is 0.05 m, and the springs are unstrained. When each sphere has a charge of +1.6 £gC, the spacing doubles. ...
February 25, 2014 by Anonymous

physics
a) What is the magnitude of the electric field at a point midway between a −8.5μC and a +8.5μC charge 8.0cm apart? Assume no other charges are nearby. b) What is the direction of the electric field?
July 8, 2015 by Aly

physics
An object (with charge -4.2 µC and mass 0.024 kg) hovers at rest above the ground, its weight being held up by a uniform electric field.(a) Find the size and direction of this electric field.(b) If the electric charge on the object is quadrupled while its mass remains the same...
February 4, 2014 by John

physics
An object (with charge -4.2 µC and mass 0.024 kg) hovers at rest above the ground, its weight being held up by a uniform electric field.(a) Find the size and direction of this electric field.(b) If the electric charge on the object is quadrupled while its mass remains the same...
February 4, 2014 by John

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
A)When point charges q1 = +1.5 ìC and q2 = +5.7 ìC 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 ìC at y1 = +0.21 m ...
October 1, 2011 by Kelli

physics
If the total positive charge is Q = 1.62×10−6C , 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

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

College Physics
A charged particle is hanging from the side of a wall by means of an uncharged string. The wall has a negative charge producing a horizontal electric field. The particle has a mass of .01 Kg. and charge of -80(micro)C and is suspended by a string .3m long. The electric force ...

PHYSICS
A proton, initially traveling in the +x-direction with a speed of 5.30×105m/s , enters a uniform electric field directed vertically upward. After traveling in this field for 4.38×10−7s , the proton’s velocity is directed 45 ∘ above the +x-axis. What is the strength...
January 28, 2014 by Mary

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
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 (electric field)
The drawing shows the potential at five points on a set of axes. Each of the four outer points is 6.2 x 10-4 m from the point at the origin. From the data shown, find the magnitude of the electric field in the vicinity of the origin.
January 18, 2013 by help

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
October 24, 2013 by smita

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
October 26, 2013 by smita

PHYSICS
A charged disk of radius R that carries a surface charge density ó produces an electric field at a point a perpendicular distance z from the center of the disk, given by: Consider a disk of radius 10 cm and positive surface charge density +3.7 mC/m2. A particle of charge -4.5...
February 11, 2010 by Heidi

physics
Three equal positive point charges of magnitude Q = 4.00ì C are located at three corners of a square of edge length d = 6.9 cm. A negative charge -14.00ì C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due ...
January 21, 2010 by farah

physics
Three equal positive point charges of magnitude Q = 8.00ì C are located at three corners of a square of edge length d = 11.8 cm. A negative charge -24.00ì C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due ...
September 1, 2011 by TP

Physics
A charge q1 = 5 ìC is at the origin. A second charge q2 = -3 ìC is on the x-axis, 0.8 m from the origin. The electric field at a point on the y-axis, 0.5 m from the origin is: I don't understand the question please help . Thanks for reading
January 18, 2013 by ugh

science
A positive test charge of 6.00 µC is placed in an electric field, which exerts a force of 5.00 x 10-4 N on the test charge. What is the magnitude of the electric field strength at the location of the test charge? (remember E = Fon q' / q', and 1 µC = 1.00 x 10-6 C)
November 6, 2013 by Anonymous

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
1. The problem statement, all variables and given/known data A point charge is placed at each corner of a square with side length a. The charges all have the same magnitude q. Two of the charges are positive and two are negative, as shown in the following figure. The two ...
January 22, 2012 by Eddie

physics
A conducting spherical shell with a total charge of +12.6 micro-coulombs has a point charge of -3.6 micro-coulombs placed at its center. The negative point charge will push the electrons in the spherical shell away from it. This will leave the inner shell with positive charge ...
February 10, 2012 by Mandaleigh

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
A 10 charge sits at a point in space where the magnitude of the electric field is 1900 .What will the magnitude of the field be if the 10 charge is replaced by a 20 charge?
March 29, 2012 by Frustrated

Physics 221
What is the magnitude and direction of the electric field at a point 0.75 m away from a point charge of +2.0 pC?
December 31, 2013 by Jacob

physics
An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s2. What are the magnitude and direction of the electric field.
March 1, 2010 by electric field