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April 24, 2014

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

Number of results: 7,099

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 ...
Monday, January 25, 2010 at 6:54pm by AE

physics
The voltage across a membrane forming a cell wall is 80.0 mV and the membrane is 8.80 nm thick. What is the electric field strength? (The value is surprisingly large, but correct. Membranes are discussed in Section 19.7* of the textbook.) You may assume a uniform E-field.
Sunday, February 10, 2013 at 10:26pm by taryn

physics
The voltage across a membrane forming a cell wall is 80.0 mV and the membrane is 8.80 nm thick. What is the electric field strength? (The value is surprisingly large, but correct. Membranes are discussed in Section 19.7* of the textbook.) You may assume a uniform E-field.
Sunday, February 10, 2013 at 10:34pm by taryn

physics
The voltage across a membrane forming a cell wall is 80.0 mV and the membrane is 8.80 nm thick. What is the electric field strength? (The value is surprisingly large, but correct. Membranes are discussed in Section 19.7* of the textbook.) You may assume a uniform E-field.
Sunday, February 10, 2013 at 10:36pm by taryn

physics
please check: Two point charges, initially 1 cm apart, are moved to a distance of 3 cm apart. By what factor do the resulting electric and gravitational forces between them change? a. 9 b. 3 c. 1/3 d. 1/9 D Two positive charges, each of magnitude q, are on the y-axis at points...
Saturday, March 14, 2009 at 8:44pm by physics

physics
An object with a charge of -4.5 micro C and a mass of 1.110−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. A) Find the magnitude of the electric field. B)Find the direction of the electric field. upward ...
Friday, January 27, 2012 at 1:44pm by jazz

physics
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300, -0.450) m, and those of point B are (0.650, 0.300) m. Calculate the electric potential difference VB − VA. thanks
Sunday, March 27, 2011 at 11:15am by Rachel

physics
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300, -0.450) m, and those of point B are (0.650, 0.300) m. Calculate the electric potential difference VB − VA. thanks
Sunday, March 27, 2011 at 12:29pm by Rachel

physics
The drawing shows a uniform electric field that points in the negative y direction; the magnitude of the field is 4540 N/C. Determine the electric potential difference the following points VB − VA between points A and B VC − VB between points B and C VA − VC ...
Saturday, January 15, 2011 at 5:33pm by Anonymous

Physics
An electron with a velocity of v = (3 x + 4 y + 2 z) 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the electric field.
Thursday, March 21, 2013 at 4:16pm by Lindsey

Physics
An electron with a velocity of v = (3 x + 4 y + 2 z) 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the electric field.
Thursday, March 21, 2013 at 4:17pm by Lindsey

math/physics
An electron moving through an electric field experiences an acceleration of 6.1 multiplied by 103 m/s2. (a) Find the electric force acting on the electron. (b) What is the strength of the electric field?
Monday, January 11, 2010 at 10:27pm by jake

physics
explain the relationship between contours of constant potential and the electric field direction. why is the electric field a vector quantity while the electric potential is a scalar?
Monday, February 1, 2010 at 5:45pm by jake

physics
A spring with an unstrained length of 0.074 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.1 X 10^3 kg and a net charge of +6...
Thursday, January 24, 2013 at 2:04am by frustrated

Physics
A spring with an unstrained length of 0.066 m and a spring constant of 2.3 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.3...
Monday, January 28, 2013 at 10:41am by kjipper

physics
A proton travels in the x direction and enters a region where a constant uniform electric field is directed in the y direction. Derive an equation which describes the x and y cooedinates of the proton in the field as a function of time t.
Sunday, July 31, 2011 at 1:18pm by Anonymous

physics
A proton travels in the x direction and enters a region where a constant uniform electric field is directed in the y direction. Derive an equation which describes the x and y cooedinates of the proton in the field as a function of time t.
Sunday, July 31, 2011 at 1:18pm by Anonymous

Physics #43
A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...
Friday, January 25, 2013 at 1:29am by Elizabeth

Physics
A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...
Monday, January 28, 2013 at 1:32am by Jasmine

Physics
A uniform electric field exists in the region between two oppositely charged plane parallel plates. an electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 3.20 cm distant from the first, in a time ...
Wednesday, July 8, 2009 at 10:40am by Sarah

physics
A small sphere of charge q = +68 C and mass m = 5.8 g is attached to a light string and placed in a uniform electric field E that makes an angle = 37a with the horizontal. The opposite end of the string is attached to a wall and the sphere is in static equilibrium when ...
Tuesday, November 6, 2012 at 5:26pm by Anonymous

physics
A small sphere of charge q = +68 C and mass m = 5.8 g is attached to a light string and placed in a uniform electric field E that makes an angle = 37a with the horizontal. The opposite end of the string is attached to a wall and the sphere is in static equilibrium when ...
Tuesday, November 6, 2012 at 5:26pm by Anonymous

electric fields, showed work
imagine sitting a distance r from a charge q. you measure both the electric field and electric potential. now imagine that the charge is halved and you move three time as far away. you measure the field and potential again. b what factor has the electric field changed? by what...
Wednesday, January 28, 2009 at 4:26pm by Anonymous

physics
A uniform electric field is directed upward and has a magnitude of 5 N/C. What are the magnitude and direction of the force on a charge of -3 C placed in this field? F=Eq E=5 q=-3 5(-3)=-15N Downward Ok I have the downward correct the -15 is incorrect. Did I use the wrong ...
Wednesday, July 25, 2012 at 9:18am by kkpdiluvu

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 ...
Tuesday, February 1, 2011 at 2:53am by Thomas

Gauss' Law!!!!!!!!!!
Can any one help me for this problem? The cube in Figure 23-27 has edge length 1.40 m and is oriented as shown in a region of uniform electric field. Find the electric flux through the right face for the following electric fields, given in newtons per coulomb. (the figure is ...
Wednesday, February 14, 2007 at 7:39pm by Lauren

Physics
I need help on the following questions, I am stuck and not sure on what to do, can someone work it out and or tell me steps to obtain the answer. Thank you 1) A point charge of -0.90 microC is fixed to one corner of a square. An identical charge is fixed to the diagonally ...
Wednesday, September 13, 2006 at 5:52pm by Kevin

physics
The electric potential in a certain region is V = a x2 + b x + c, where a = 15 V/m2, b = −13 V/m, and c = 67 V. 1)Determine the electric field at x = 4 m. 2)Determine the position where the electric field is zero.
Saturday, September 24, 2011 at 11:08pm by physics

Physics
A charge of 28.0 nC is placed in a uniform electric field that is directed verticall upward and that has a magnitude of 4.00*10^4 N/C. What work is done by the electric force when the charge moves (a)0.450 m to the right (b) 0.670 m upward (c) 2.60 m at an angle of 45 degrees ...
Monday, January 28, 2008 at 10:11pm by Harper

physics
Two particles are in a uniform electric field whose value is +4000 N/C. The mass and charge of particle 1 are m1 = 1.0x10-5 kg and q1 = -15 C, while the corresponding values for particle 2 are m2 = 3.0 x10-5 kg and q2 = +35.0 C. Initially the particles are at rest. The ...
Monday, October 4, 2010 at 1:25pm by Nate

PHYSICS
Determining how the charges distribute on the surface of a conductor is, in general, a very difficult problem. We know that if we charge a conductor the charges go to the surface and redistribute so that the electric field in the conductor vanishes. One of the few shapes for ...
Thursday, March 21, 2013 at 5:16pm by Anonymous

physics
8 1/2 HRS ON THIS MASTERING PHYSICS WOW n 1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged ...
Wednesday, April 18, 2012 at 7:36pm by Kristie

Applied Physics
Which is a vector quantity? electric energy electric charge electric power electric field intensity
Sunday, May 29, 2011 at 5:27pm by Scott

physics
In a region containing a uniform electric field at right angle to the magnetic field suppose, for instance, that Vector B point in X direction and Vector E in the Z axis as shown below. What path will a particle that is released from the origin it follow. (Describe the ...
Sunday, August 28, 2011 at 11:32am by Abdulazeez

Physics
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.40 cm. What is the work done by the field on the electron? What is the change in potential energy associated with the ...
Wednesday, September 22, 2010 at 9:36pm by chuck

physics
True or False When electric field lines are curved, the electric field at any point is tangent to the field line at that point.
Friday, October 30, 2009 at 3:32pm by Anonymous

Physics - please check over
A charged particle moves at a constant velocity in a straight line through a region in space... a) is the electric field zero in the region? Explain b) is the magnetic field zero i the region? Explain I think a is yes because a charged particle will always create an electric ...
Tuesday, April 28, 2009 at 9:03pm by Lana

physics
a thin wire with linear charge density _ is surrounded by a conducting cylindrical shell. (a) If the electric field must be zero inside a conductor, is the electric field due to the wire shielded from extending beyond the conducting shell? (b) Find the electric field as a ...
Tuesday, September 23, 2008 at 2:43pm by al

Physics
What must the charge (sign and magnitude) of a particle of mass 1.48g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N/C ? What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude...
Tuesday, September 3, 2013 at 7:17pm by Wayne

Physics
An electrostastic force of 20.0 newtons is exerted on a charge of 8.00 x 10^/2 C at point P in an electric field. The magnitude of the electric field strength at P is Given: Fe = 20 B q = 8.00 x 10^/2 C
Friday, February 5, 2010 at 5:05pm by Priscilla

11th grade
A thunderstorm has an electric field one night of 1.5 105 N/C. What is the magnitude of the electric force on an electron in such a field?
Thursday, December 16, 2010 at 5:20pm by jesse

physics
an electric field of 15000 N/C is directed along the positive x-axis, what is the electric force on an electron in this field?
Wednesday, May 25, 2011 at 3:53pm by Anonymous

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 ...
Thursday, February 17, 2011 at 11:40pm by Anonymous

physics
A proton, initially traveling in the +x-direction with a speed of 6.00105m/s , enters a uniform electric field directed vertically upward. After traveling in this field for 4.3810−7s , the protons velocity is directed 45 ∘ above the +x-axis.
Thursday, February 6, 2014 at 9:16pm by chris

physics
What is the rms value of the electric field in a sinusoidal electromagnetic wave that has a maximum electric field of 64 V/m?
Sunday, March 4, 2012 at 8:55pm by jazz

physics
3. What is the magnitude of the electric field strength E such that an electron, when placed in the field, would experience an electrical force equal to its weight? What electric field strength E is required if the electron is replaced by a proton
Sunday, March 13, 2011 at 6:41pm by lol

college physics
The charge per unit length on a long, straight filament is -87.0 C/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) Find...
Sunday, October 6, 2013 at 4:54pm by vishal

college physics
The charge per unit length on a long, straight filament is -87.0 C/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) Find...
Sunday, October 6, 2013 at 6:26pm by vishal

college physics
The charge per unit length on a long, straight filament is -87.0 C/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) Find...
Sunday, October 6, 2013 at 8:27pm by vishal

physics
Over a certain region of space, the electric potential is V = 5x - 6x2y + 2yz2. Find the expression for the x component of the electric field over this region. (Use x, y, and z as necessary.) Find the expression for the y component of the electric field over this region. Find ...
Sunday, October 13, 2013 at 4:04pm by physics help

physics
The charge per unit length on a long, straight filament is -87.0 C/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) Find...
Sunday, September 8, 2013 at 11:14am by preya

physics
The charge per unit length on a long, straight filament is -87.0 C/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) Find...
Friday, September 13, 2013 at 3:57am by priya

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...
Friday, February 12, 2010 at 12:55pm by Susie

Physics
One very long wire carries a current of 30A to the left along the x-axis.A second very long wire carries a current of 50A to the right along the line(y=0.280m,z=0) A)Where in the plane of the two wires is the total magnetic field equal to zero? B)A particle with a charge of -2...
Wednesday, November 11, 2009 at 2:48pm by Sandhu

Physics
The electric flux through the surface shown in Figure Ex27.10 is 15.0 Nm2/C, and the electric field makes an angle α = 70 with the surface. What is the electric field strength? The surface is a 10cm by 10cm square.
Monday, September 13, 2010 at 8:59am by David D.

physics
In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field E which is oriented perpendicular to a uniform magnetic ...
Wednesday, April 23, 2014 at 6:42am by Anonymous

phys
The ammonia molecule has a dipole moment of . Ammonia molecules in the gas phase are placed in a uniform electric field with magnitude 1.1106 . What is the change in electric potential energy when the dipole moment of a molecule changes its orientation with respect to from ...
Wednesday, January 30, 2013 at 8:56pm by Anonymous

College Physics II
Consider a region in space where a uniform electric field E = 7450 N/C points in the negative x direction. What is the distance between the +13.1 V and the +14.1 V equipotentials?
Wednesday, September 15, 2010 at 3:54pm by VJC

science
Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.
Monday, October 3, 2011 at 11:31am by jenny

physics
Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.
Monday, October 3, 2011 at 11:44am by jenny

physics
Suppose electrons enter a uniform electric field midway between two plates at an angle 0 to the horizontal, as shown in the figure
Saturday, February 8, 2014 at 11:42am by Anonymous

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 ...
Wednesday, September 19, 2012 at 5:40pm by Katie

Physics
An electron with a speed of 3.00X10^6 m/s moves into a uniform electric field of magnitude 1.00X10^3 N/C. The field lines are parallel to the electrons velocity and pointing in the same direction as the velocity. How far does the electron travel before it is brought to rest?
Sunday, September 8, 2013 at 11:17am by Gil

Physics - urgent
I already asked this and was given an answer, but I don't fully understand it and so would like a further explanation. What I asked was... An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of 1.2x10^6 m/s parallel to ...
Tuesday, April 21, 2009 at 9:38pm by Linn

algebra based physics
An electron in an oscilloscope tube is traveling horizontally with a speed of 4.4106m/s . It passes through a 2.1cm long region with an electric field pointing upward with a magnitude of 1500N/C. what is the magnitude of the electrons velocity when it emerges from the ...
Monday, February 10, 2014 at 10:13pm by jrfannin

physics2
A uniform electric field of 2.1 x 106 N/C is directed in the positive x direction. A charge of -4.3 micro-Coulombs with a mass of 7.5 kg is initially moving at 18 m/s in the positive x direction before it enters the field. How many seconds does it take before the charge stops?
Saturday, January 29, 2011 at 12:05pm by kelly

physcis
can we only have uniform electric field in flux only
Wednesday, August 18, 2010 at 12:58am by blasting

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 ...
Thursday, September 16, 2010 at 1:42am by Max

physics
A particle with a charge 7C and a mass of 20kg is traveling in a circular path around a fixed particle of charde -5C. The velocity is observed to be 3000m/sec. A 9C particle with the same velocity is instead in the presence of a uniform electric field of 250N/C as shown. What ...
Monday, December 20, 2010 at 1:22am by dipset

Physics-Please check and I need help
Please help set this up- A person goes into the electric field and has an object with a charge value of 4.2E-6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the object they have. What is electric field ...
Saturday, March 19, 2011 at 5:13pm by Rachel Lynn C.

Physics PLEASE HELP!
A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...
Monday, January 28, 2013 at 11:23pm by Adriana

Physics
find the electrostatic potential, and then the electric field a distance z above the centre of a circular loop of radius r, which carries a uniform line charge (lamda)
Thursday, October 13, 2011 at 11:45am by Danny

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.
Friday, February 24, 2012 at 7:35pm by Anonymous

Physics
There is a very large horizontal conducting plate in the plane (consider it infinitely large). Its thickness is . The charge densities on the upper and the lower surfaces are both equal to . The goal of this problem is to find the electric field (magnitude and direction) at ...
Sunday, February 24, 2013 at 10:31pm by P

Physics
A thin rod L = 9.0 cm long is uniformly charged and has a total charge of 4.4 nC. Find the magnitude of the electric field at a point P located at a distance R = 13.5 cm from the center of the rod when: (a) The point P lies along the axis of the rod Electric field =___kN/C (b...
Monday, July 9, 2012 at 11:11pm by Rain

physics
A proton moves in a constant electric field from point A to point B. The magnitude of the electric field is 6.4 10^4 N/C; and it is directed as shown in the drawing, the direction opposite to the motion of the proton. If the distance from point A to point B is 0.50 m, what ...
Thursday, February 16, 2012 at 1:27am by Daniel

physics
A proton moves in a constant electric field E from point A to point B. The magnitude of the electric field is 4.2 x10^4 N/C; and it is directed as shown in the drawing, the direction opposite to the motion of the proton. If the distance from point A to point B is 0.18 m, what ...
Monday, April 23, 2012 at 5:23pm by Anonymous

phyics
An electron and a proton are placed at rest in a uniform electric field modulus equal to 520N / C. Calculate the speed of each particle of 48 ns after the latter has been released
Wednesday, January 22, 2014 at 10:47pm by Anonymous

phyics
An electron and a proton are placed at rest in a uniform electric field modulus equal to 520N / C. Calculate the speed of each particle of 48 ns after the latter has been released
Wednesday, January 22, 2014 at 10:46pm by Anonymous

physics
On planet Tehar, the acceleration of gravity is the same as that on Earth but there is also a strong downward electric field with the field being uniform close to the planet's surface. A 2.16 kg ball having a charge of 4.80 uC is thrown upward at a speed of 21.0 m/s and it ...
Wednesday, September 8, 2010 at 8:00pm by VJC

physics
1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged plates. The drops were observed with a ...
Friday, April 20, 2012 at 9:47pm by Kristie

Physics
A cube is located with one corner at the origin of an x, y, z, coordinate system. One of the cube's faces lies in the x, y plane, another in the y, z plane, and another in the x, z plane. In other words, the cube is in the first octant of the coordinate system. The edges of ...
Monday, September 24, 2007 at 10:11pm by Mary

physics
An electron is released from rest in a uniform electric field of magnitude 2.00 x 10e4 N/C. Calculate the acceleration of the electron (neglect gravitation).
Thursday, February 2, 2012 at 5:50pm by Shakirah

physics
A metal sphere hangs from a string and has 2 kg of mass. The sphere has a charge of +7.1 C. A uniform electric field is turned on and directed to the right.
Thursday, January 16, 2014 at 3:11pm by Donna

Physics
A -3.5 uC charge experiences a 13N i hat electric force in a certain electric field.What would the force be for a proton experience in the same field? I amd doing this 13/-3.5=-3.7 then multiplying 1.6*10^19 where did i go wrong
Wednesday, August 12, 2009 at 12:21am by Sammy

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?
Friday, January 27, 2012 at 2:32pm by Mike

Physics
A charged particle of mass 6.38x10^-31kg is suspended motionless in the air by an electric field. If the electric field is 7.52x10^-21 N/C downwards, what is the magnitude and sign of the charge of the particle?
Monday, January 30, 2012 at 9:22pm by Anonymous

Physics Flux
The electric flux through the surface shown in Figure Ex27.10 is 15.0 Nm2/C, and the electric field makes an angle = 70 with the surface. What is the electric field strength? The surface is a 10cm by 10cm square.
Monday, September 13, 2010 at 3:59pm by David

PHYSICS
A particle with a mass of 2.00x10-16 kg and a charge of 22.0 nC starts from rest, is accelerated by a strong electric field, and is fired from a small source inside a region of uniform constant magnetic field 0.660 T. The velocity of the particle is perpendicular to the field...
Saturday, July 2, 2011 at 6:43pm by jim

physics
points A {at(2,3)m} and B {at(5,7)m} are in a region where the electric field is uniform and given by vector E=(4i+3j) N/C. What is the potential difference Va-Vb in volts? a. 23 b. 27 c. 30 d. 24 e. 11 i think the formula may be ds=dxi+dyi but even with that im not sure how ...
Monday, April 6, 2009 at 10:51pm by Edward

Physics
An alpha particle (charge +2e and mass 6.64 x10-27 kg) is traveling to the right at 1.50 km/s. What uniform electric field (magnitude and direction) is needed to cause it to travel to the left at the same speed after 2.65 s.?
Sunday, March 10, 2013 at 12:08pm by Anonymous

Physics
An alpha particle (charge +2e and mass 6.64 x10-27 kg) is traveling to the right at 1.50 km/s. What uniform electric field (magnitude and direction) is needed to cause it to travel to the left at the same speed after 2.65 s.?
Sunday, March 10, 2013 at 12:09pm by Anonymous

Physics
A small object, which has a charge q = 6.7 C and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field. Answer in N/C
Monday, January 28, 2013 at 1:36am by Jasmine

Physics
Which of the following is NOT the correct dimension for electric field? A. N/C B. V/m C. J/Cm D. All of the answers have the correct dimensions for electric field
Wednesday, August 29, 2012 at 10:03am by Jem

Physics
A particle with mass m = 1.20g and charge q = 345C is traveling in the x-direction with an initial velocity of v0 = 68.0m/s. The particle passes through a constant electric field in the y-direction with magnitude |E| = 263N/C over a distance of d = 12.0m. (a) What is the ...
Thursday, January 17, 2013 at 5:45pm by Nick

physics
If a spherical shell has a uniform volume density of 1.84nC/m^3, inner radius a=.1m, outer radius b=.2m, what is magnitude of electric field at radial distances r=a, r=b, r=3b
Monday, February 6, 2012 at 5:47pm by amy

Physics
An electron travelling in the same direction that an electric field points initially has a speed of 4.21 107 meters per second. If the electric field has a magnitude of 2.28 104 N/C, how far does the electron travel before stopping?
Thursday, June 7, 2012 at 4:21pm by John

Physics
An electron experiences a force of 12 mN in the positive x-direction in an electric field. What is the magnitude and direction of the electric field?
Tuesday, February 8, 2011 at 10:56pm by Sam

physics
i need help w part b and c A proton is released from rest in a uniform electric field of magnitude 388 N/C. (a) Find the electric force on the proton. magnitude N direction (b) Find the acceleration of the proton. magnitude m/s2 direction (c) Find the distance it travels in 2....
Tuesday, December 20, 2011 at 5:59pm by ann

physics
At a certain distance from a point charge, the potential due to the charge is |5.93 V, and the magnitude of the electric field is 13.5 V/m. (Take the potential to be zero at infinity.) Is the electric field directed toward or away from the charge? Here is my attempt. Since ...
Monday, February 25, 2008 at 2:22am by Samantha

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