Wednesday
April 16, 2014

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

Number of results: 68,305

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 ...
Friday, September 6, 2013 at 1:57pm by Sarah

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 ...
Tuesday, April 23, 2013 at 9:45pm by wendlen

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 ...
Monday, January 23, 2012 at 5:13pm 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 ...
Tuesday, January 24, 2012 at 10:36am 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 = +0.30 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 ...
Friday, September 6, 2013 at 3:30pm by Sarah

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 ...
Thursday, January 6, 2011 at 3:31pm 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 ...
Thursday, January 6, 2011 at 3:55pm by michelle

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 ...
Thursday, March 29, 2012 at 8:20pm by Kelly

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...
Friday, March 30, 2012 at 10:32am by matt

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?
Wednesday, February 22, 2012 at 8:43am by Celine

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 ...
Saturday, October 1, 2011 at 2:12pm by Kelli

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 ...
Monday, December 5, 2011 at 2:17pm by mo

physics
Electric field at a distance r from a charge q is given by Coulomb's law: E = k q / r^2 To get the E-field, you have to add the contribution of 3 charges: E1 = k q1 / r1^2 E2 = k q2 / r2^2 E3 = k q3 / r3^2 You can look at the geometry and so simple addition and subtraction to ...
Tuesday, April 23, 2013 at 9:45pm by Rachael

Physics
Two spheres of charge q1 and q2 that are equal in magnitude (i.e. |q1| = |q2|) are attached by a spring with a constant k = 1440kg/s2 and a rest length of x0 = 83.0cm. We take negative values of x for compression and positive x values for expansion. Knowing that q1 is ...
Thursday, January 17, 2013 at 5:43pm by Phil

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 ...
Wednesday, March 14, 2012 at 2:02am by Nikki

Physics
A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, there are two places where the total potential is zero. The first place is between the charges and is 4.03 cm to the left of the negative charge. The second place ...
Saturday, July 14, 2012 at 1:03am by CombatVetUSMC

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 ...
Monday, January 24, 2011 at 10:57pm by Cassie

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 ...
Sunday, January 13, 2008 at 10:32pm by Sarah

Physics
There are four charges, each with a magnitude of 2.65 microcoulombs. Two are positive and two are negative. The charges are fixed to the corners of a 0.408-m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square. ...
Wednesday, July 18, 2012 at 7:52pm by JJ

physics
Three point charges, q1, q2, and q3, lie along the x-axis at x=0, x=3 cm, and x=5 cm, respectively. Calculate the magnitude and direction of the electric force on each of the three points when q1=+6.0 muC, q2=+1.5 muC, and q3=-2.0 muC. I would add the forces. Watch direction. ...
Wednesday, April 11, 2007 at 7:25pm by Mischa

physics
q1 exerts a force on q in the positive direction, and q2 exerts a force on q in the negative direction. F = k(q1q2)/r^2 is the force exerted on one point charge by another. ΣF = k(q*q1)/(0.24)^2 - k(q*q2)/(0.37)^2 = 24. q and q1 are given. q2=?
Thursday, January 6, 2011 at 3:55pm by Marth

Physics
Let x be the distance between Q1 and the point where the electric field is 0. Then the distance between Q2 and this point is 2x E = 0 = k*Q1/x^2 + k*Q2 / (2x)^2 = k*Q1/x^2 +k*Q2 / 4x^2 or k*Q1/x^2 = - k*Q2/4x^2 This can only happen if one of Q1 and Q2 is negative, and one is ...
Thursday, February 22, 2007 at 4:16pm by Jennifer

physics
have homework due soon, need help thanks. 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 ...
Tuesday, February 4, 2014 at 11:02pm by jrfannin

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
Sunday, December 19, 2010 at 7:38pm 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?
Tuesday, April 23, 2013 at 9:39pm by wendlen

AP Physics B
Two point charges Q1 and Q2, are located a distance .20 meter apart, as shown above. Charge Q1 = +8.0μC. The net electric field is zero at point P, located .40 meter from Q1 and .20 meter from Q2. Determine the magnitude and sign of charge Q2.
Wednesday, February 6, 2013 at 6:57pm by Alix

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?
Monday, April 29, 2013 at 7:30pm by John Miller

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 ...
Monday, January 23, 2012 at 11:32pm by Cooper

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 ...
Thursday, May 3, 2012 at 1:10pm by david

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?
Wednesday, September 19, 2012 at 11:53pm by Anonymous

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 ).
Friday, January 21, 2011 at 1:13am by Cassie

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 ...
Tuesday, April 5, 2011 at 7:30pm 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 ...
Tuesday, April 5, 2011 at 8:32pm by mink

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 ...
Monday, April 4, 2011 at 10:44pm by Allison

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?
Saturday, February 16, 2008 at 9:59am by Julia

Physics
Look up the charge on a proton!!!! (It is the same magnitude as the charge on an electron but positive, not negative, otherwise a hydrogen atom would not be neutral!!!) Try U = k Q1 Q2 / r where k = 9*10^9 N m^2/C^2
Friday, February 18, 2011 at 3:54pm by Damon

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...
Friday, January 27, 2012 at 1:48pm by jazz

Physics
(a) Net charge, q1 + q2, stays the same. (b) Since they are the same size and become equipotential by touching, the final q1' and q2' are equal. Call that charge q q1 + q2 = 2q q1' = q2' = (q1 + q2)/2
Tuesday, March 19, 2013 at 7:02am by drwls

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....
Monday, December 16, 2013 at 11:10pm by Hola

Physics
I solved it like this let charge of the ball be Q let charge of unkown ring be Q2 let the place where there is equilbrium be P. This point P is 0.25m from the ring with known charge and and hence 0.75m from the ring with unknown charge. Now applying coulomb's law at this point...
Thursday, June 13, 2013 at 4:45am by Physics Lover

Physics Help Please
particle 1 of charge q1 = 6.6010-5 C and particle 2 of charge q2 = 3.3010-4 C are fixed to an x axis, separated by a distance d = 0.100 m. Calculate their net electric field E(x) as a function of x for the following positive and negative values of x, taking E to be positive ...
Tuesday, September 17, 2013 at 2:35pm by HP

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 ...
Tuesday, February 4, 2014 at 11:09pm by jrfannin

physics
Two charges are fixed in place with a separation d. One charge is positive and has nine times (n = 9) the magnitude of the other charge, which is negative. The positive charge lies to the left of the negative charge. Relative to the negative charge, locate the two spots on the...
Sunday, February 4, 2007 at 10:00pm by Ann

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 ...
Thursday, December 13, 2012 at 9:56am 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...
Tuesday, February 12, 2013 at 5:05pm by yanis

Physics-Please help with formula
Electric field To help visualize how a charge, or a collection of charges, influences the region around it, the concept of an electric field is used. The electric field E is analogous to g, which we called the acceleration due to gravity but which is really the gravitational ...
Friday, February 25, 2011 at 4:22pm by Damon

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 ...
Monday, January 21, 2008 at 12:50pm by Jen

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
Wednesday, February 8, 2012 at 9:32pm by john

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 ...
Friday, January 27, 2012 at 1:39pm by jazz

science question
Histones interact with DNA at specific loci because DNA has phosphate functional groups. This interaction occurs because histones have a net _____ positive charge, which derives from their ______ residues, and interact with DNA because of its net _______ charge. a. negative, ...
Friday, July 21, 2006 at 12:17pm by Sara

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...
Thursday, February 14, 2008 at 9:03pm 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...
Thursday, February 14, 2008 at 6:28pm by todi

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 ...
Thursday, February 10, 2011 at 4:14am by John

Physics
Review Conceptual Example 7 as background for this problem. Two charges are fixed in place with a separation d. One charge is positive and has twice (n = 2) the magnitude of the other charge, which is negative. The positive charge lies to the left of the negative charge, as in...
Monday, September 3, 2012 at 1:05am by Brandi

physics
Three equal positive point charges of magnitude Q = 4.00 C are located at three corners of a square of edge length d = 6.9 cm. A negative charge -14.00 C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due ...
Thursday, January 21, 2010 at 12:08pm by farah

physics
Three equal positive point charges of magnitude Q = 8.00 C are located at three corners of a square of edge length d = 11.8 cm. A negative charge -24.00 C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due ...
Thursday, September 1, 2011 at 8:03pm by TP

Physics- Coulomb's Law
1) Particles of charge Q1 = +77 C, Q2 = +44 C, and Q3 = -80 C are placed in a line. The center one (Q2) is 0.35 m from each of the others. Calculate the net force on Q1 and Q2 due to the other charges. a) Force on Q1 Magnitude b) Force on Q2 Magnitude 2) A charge of 3.9 nC ...
Monday, April 29, 2013 at 10:08pm by Kristal

physics please help!!
A charge, Q2 = -9.00x10-6 C, is 12.00 cm to the right of charge Q1 = 10.00x10-6 C. Where can a third charge be placed, along the line connecting Q1 and Q2, such that it experiences no net force? Give distances relative to Q1 and use a plus sign if the third charge is to the ...
Monday, January 23, 2012 at 3:09pm by archi

physics
Three point charges are arranged along the x-axis. Charge q1 = +2.75 C is at the origin, and charge q2 = -5.25 C is at x = 0.220 m. Charge q3 = -6.50 C. Where is q3 located if the net force on q1 is 7.50 N in the −x-direction?
Sunday, January 27, 2013 at 8:57pm by figo

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 ...
Thursday, February 23, 2012 at 4:09pm by Kayberlynn

physics
A positive charge q1 = 2.70 uC on a frictionless horizontal surface is attached to a spring of force constant k as in the figure. When a charge of q2 = 8.60 uC is placed 9.50 cm away from the positive charge, the spring stretches by 5.00 mm, reducing the distance between the ...
Wednesday, November 7, 2012 at 2:48pm by Brette

physics
The two negative charges pull the positive charge in opposite directions. Use Coulomb's law F = k q1 q2 /r^2 to compute the two separate forces. The force pulling to the south will be stronger because the -4.0 uC charge is larger and closer. Subtract the force due to the other...
Thursday, January 22, 2009 at 10:20pm by drwls

Physics PLs DAMON HELP
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....
Monday, December 16, 2013 at 5:26pm by ashish

College Physics
What must be the distance in meters between point charge q1 = 25.6 C and point charge q2 = -69.6 C for the electrostatic force between them to have a magnitude of 8.50 N?
Friday, July 6, 2012 at 10:34pm by Stephanie3

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 ...
Monday, February 3, 2014 at 10:22pm by Anonymous

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 ...
Sunday, September 8, 2013 at 11:13am by gita

Science Question for Lance
Histones interact with DNA at specific loci because DNA has phosphate functional groups. This interaction occurs because histones have a net _____ positive charge, which derives from their ______ residues, and interact with DNA because of its net _______ charge. a. negative, ...
Saturday, July 22, 2006 at 12:39pm by sara

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 ...
Tuesday, July 8, 2008 at 9:45pm by H

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...
Tuesday, July 17, 2012 at 5:16pm by Michael

physics
a) Let x be measured to the right of the 3uC charge, which we will assume to be the left-hand charge. For zero field strength, k*q1/x^2 + kq2/(x-5)^2 = 0 [(x-5)/x]^2 = -q2/q1 = 2/3 (x-5)/x = 0.8165 = 1 - (5/x) 5/x = 0.1835 x = 27.2 cm to the right of q1 and, which is 22.2 cm ...
Sunday, March 3, 2013 at 10:19pm by drwls

physics
Work required = q * (change in V) where q is the charge. In this case the work is negative. The negative charge will be attracted to the positive potential point
Thursday, April 28, 2011 at 12:58am by drwls

physics
A positive charge of 1.100 C is located in a uniform field of 1.10~105 N/C. A negative charge of -0.100 C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge due to the field. How close ...
Thursday, September 1, 2011 at 7:52pm by Anonymous

physics
Since q1 and q2 are positive charges, q3 in its equilibrium position has to be between them at the distance x from the charge q1. F1=F2. Use Coulombs Law F1= kq1q3/x², F2 = k q2q3/(r-x)², kq1q3/x²= k q2q3/(r-x)², q1 /x²= q2 /(r-x)². ...
Tuesday, May 1, 2012 at 5:06pm by Elena

physics
Since q1 and q2 are positive charges, q3 in its equilibrium position has to be between them at the distance x from the charge q1. F1=F2. Use Coulombs Law F1= kq1q3/x², F2 = k q2q3/(r-x)², kq1q3/x²= k q2q3/(r-x)², q1 /x²= q2 /(r-x)². ...
Tuesday, May 1, 2012 at 8:38pm by Elena

Physics
Since q1 and q2 are positive charges, q3 in its equilibrium position has to be between them at the distance x from the charge q1. F1=F2. Use Coulombs Law F1= kq1q3/x², F2 = k q2q3/(r-x)², kq1q3/x²= k q2q3/(r-x)², q1 /x²= q2 /(r-x)². ...
Tuesday, May 1, 2012 at 9:36pm by Elena

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 ...
Tuesday, February 16, 2010 at 7:13pm by Adam

college physics
An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.310^7 m/s. What was the electron's speed as it left the negative plate? the voltage is 650V and the charge of q1 is 1.7*10^-9 and the charge of q2 is -1.7*10^-9
Thursday, July 15, 2010 at 12:02am by katie

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 ...
Wednesday, March 27, 2013 at 12:00am 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 ...
Wednesday, March 27, 2013 at 11:34am by Steve

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 ...
Monday, March 25, 2013 at 12:25pm by i need help from anyone!

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 ...
Wednesday, March 27, 2013 at 7:53am by Gurudev

physics
Use Coulomb's Law: F = k*Q1*Q2 / r^2 k = 9.00x10^9 N.m^2/C^2 (Coulomb's constant) Q1 = Q2 = 1.60x10^-19C (Elementary charge) r = given in the question (distance) Note: The charge of a proton is equal to the charge of an electron except for the algebraic sign.
Friday, September 5, 2008 at 7:47pm by GK

physics
Two charges are separated by a distance d = 5 m. The charge q1 has a charge of q1= 7.0 C (microcoulombs) and q2 has a charge of q2= 6.8 C. What is the force between the charges?
Sunday, May 1, 2011 at 8:41pm by marissa

College Physics
Tension= mg+electric force The direction of the E field is the direction of a positive charge, so if the charge is positive, they add. If the charge is negative, they are in opposite directions.
Tuesday, January 26, 2010 at 7:19pm by bobpursley

physics
What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. The object has no net charge. 2. Cannot be determined. 3. The object does not have an appreciable negative charge. 4. The object does not have an appreciable ...
Saturday, February 20, 2010 at 8:06pm by Anonymous

Physics
Four coulombs of positive charge flow from the +6 V positive terminal of a battery to the negative terminal at 0V. What is the charge in potential energy of the charge.
Wednesday, January 19, 2011 at 10:13pm by Adriana

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...
Monday, February 25, 2013 at 7:51am by Anonymous

physics
Three point charges are fixed in place in a right triangle. What is the electric force on the q = -0.63 C charge due to the other two charges? (Let Q1 = +0.83 C and Q2 = +0.9 C.) what is the magnitude N, and direction in degrees above the positive x-axis?
Sunday, January 22, 2012 at 3:16pm by john

Physics
Positive work must be done in order to make a positive charge go opposite the direction of the electric field. F of Electric field----> <-- + F of Positive charge (If you did negative work, the positive charge would move in the direction of the field.)
Friday, February 12, 2010 at 12:55pm by Liz

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...
Wednesday, September 29, 2010 at 3:16pm by melody

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 ...
Wednesday, February 1, 2012 at 8:46pm by Ashley

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
Saturday, May 12, 2012 at 6:20am by Filip

Science. 11th Grade Pre-AP Physics
Hi bobpursley. Thank you very much for the starting point. Here goes my guess at the explanation: The positive ball would go first to the negatively charged plate. After which, it would hold a more negative charge. Due to the negative charge, it would travel towards the ...
Friday, February 25, 2011 at 1:12pm by Angela

Physics
A point charge Q1=−2 μC is located at x=0, and a point charge Q2=+8 μC is placed at x=−0.5 m on the x-axis of a cartesian coordinate system.The goal of this problem is to determine the electric field, E⃗ (x)=E(x)x, at various points along the x-...
Thursday, February 21, 2013 at 3:41am by Anonymous

Physics
1b. q2 being negative, it will be attracted to the left and right, but on the right, the charge is bigger, and closer. Q2 is attracted to the right. Force=kq2(q3/1.5^2 -q1/2^2) 1a. Find the two repulsive forces (F12, F23) and add them as vectors. They are in the opposite ...
Thursday, August 30, 2007 at 9:46pm by bobpursley

physics
What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. The object has no net charge. 2. Cannot be determined. 3. The object does not have an appreciable negative charge. 4. The object does not have an appreciable ...
Saturday, February 20, 2010 at 7:49pm by Anonymous

Chemistry Dipole Moments
How do you tell which end of a polar bond is positive or negative? My book says that a molecule such as Hf has a center of positive charge a center of negative charge. But in S--O, how do you tell which end is positive, and which is negative.
Monday, April 12, 2010 at 2:49pm by Emma

physics
Three positive point charges of q1 = 4.0 nC, q2 = 6.4 nC, and q3 = 1.5 nC, respectively, are arranged in a triangular pattern, as shown below. Find the magnitude and direction of the electric force acting on the 6.4 nC charge.
Friday, December 17, 2010 at 5:00pm by jesse

physics
the point where Q2 will be at equilibrium? The forces on each side are equal and opposite. Now Q1 is neg, Q2 is positive, so the force on Q2 will be to the left. But Q2 is +, and Q3 is negative, so the force on Q2 will be to the right. so the idea is to set the two forces ...
Monday, January 3, 2011 at 5:23pm by bobpursley

Physics
Divide the negative charge by two. Since the total charge of the dipole is zero, you must have the two positive charges (which are the same), cancel out the sole negative charge. -15.9/2 = -7.95, and then flip the sign because the two sides are positive, so +7.95C
Tuesday, April 2, 2013 at 7:33pm by Rachel

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members