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February 22, 2017

Search: What is the magnitude of the force a +12 �C charge exerts on a +2.9 mC charge 43 cm away?

Number of results: 33,468

physics
Two workers are moving a slab of ice (m = 290 kg) across the factory floor. As seen from above, one worker exerts a force of 415 N at an angle of -20o, and the other exerts a force of 470 N at an angle of 50o. What is the magnitude of the acceleration of the ice slab?
September 14, 2016 by Tessa

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 ...
April 18, 2012 by Kristie

Physics Please help2
Two small insulating spheres with radius 7.00×10^−2m are separated by a large center-to-center distance of 0.565m . One sphere is negatively charged, with net charge -2.05μC , and the other sphere is positively charged, with net charge 4.10μC . The charge is ...
May 21, 2014 by Josh

Physics
Explain how rubbin fur on an ebonite rod produces a charge on the rod. What chrage is produced in the rod? I understand the question, but how am I to know if it will have a positive or negative charge? Also, I don't quite understand how you charge something electrically by ...
December 28, 2008 by Lizzie

chemsitry
What is the formal charge on each of the atoms in the Lewis structure of the PO4 (-3) charge? Draw another possible Lewis structure of the phosphate ion below. Formal charge on P is ? -how do I do this problem.
November 13, 2010 by Sarah

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

Physics
A plate carries a charge of -3.2 µC, while a rod carries a charge of +1.5 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
March 10, 2013 by Anonymous

Physics
A plate carries a charge of -2.0 µC, while a rod carries a charge of +3.0 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
June 22, 2014 by Anonymous

Physics
A plate carries a charge of -2.0 µC, while a rod carries a charge of +3.0 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
June 22, 2014 by Anonymous

physics help
The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm calculate the gravitational force that P exerts on Q answer F=Gm1m2/r^2 F=(6,67x10^-11)(55kg)(70kg)/(80cm) F=4.01x10^-11..... Is it correct is correct (b)give only the ...
October 11, 2015 by angel

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 ...
July 14, 2012 by CombatVetUSMC

Physics
Identical point charges of +2.1 ìC are fixed to diagonally opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find the sign and magnitude ...
January 24, 2013 by Amy

Physics
Identical point charges of +2.1 ìC are fixed to diagonally opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find the sign and magnitude ...
January 24, 2013 by Amy

physics
What is the magnitude of the electric field if one charge is positive and the other negative, both of magnitude 5.43 µC?
March 3, 2011 by Anonymous

physics
A small spherical insulator of mass 1.90 10-2 kg and charge +0.600 µC is hung by a thin wire of negligible mass. A charge of −0.900 µC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes an angle è with the vertical. Find the angle...
September 3, 2009 by amber

Physics
An alpha particle(the nucleus of a helium atom) has a mass of 6.64*10^-27kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the gravitational force on it? Mp= 1.67*10^-27kg
May 16, 2012 by Tolar

Physics
An alpha particle(the nucleus of a helium atom) has a mass of 6.64*10^-27kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the gravitational force on it? Mp= 1.67*10^-27kg
May 16, 2012 by Tolar

Physics
An alpha particle(the nucleus of a helium atom) has a mass of 6.64*10^-27kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the gravitational force on it? Mp= 1.67*10^-27kg
May 16, 2012 by Tolar

physics
Three identical point charges A, B, and C are located in the shape of an equilateral triangle with sides of length 15 cm. What is the net force on B if each charge has a magnitude of −5.0 × 10−3 C?
June 8, 2014 by grey

physics electricity
An electric force moves a charge of +1.65 multiplied by 10-4 C from point A to point B and performs 6.40 multiplied by 10-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two points? (b) Determine ...
January 3, 2010 by alex

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

physics
if a negative charge particle is placed on the left side and a higher positive charge particle is placed on the right side, why is the location that makes electric field zero is on the left of negative charge rather than in between or on the right of positive charge
August 3, 2010 by blast

physics
Consider a long charged straight wire that lies fixed and a particle of charge +2e and mass 6.70E-27 kg. When the particle is at a distance 1.31 cm from the wire it has a speed 2.30E+5 m/s, going away from the wire. When it is at a new distance of 2.71 cm, its speed is 3.10E+6...
January 27, 2010 by jaredd

physics
a particle having a charge of -2.0 x 10^-9 is acted on by a downward electric force of 3.0 x 10^-6 in a uniform electric field. what is the magnitude and direction of the electric force exerted on a proton placed in this field. what is the gravitation force on the proton. what...
September 6, 2016 by Supansa

physics
how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if the force of repulsion betwen the spheres is to be 0.000000008 N? how do i solve this problem??=( help please.thx. Use Coulomb's Law: F = k Q^2/R^2 The force is F = ...
August 20, 2007 by Jarin

Physics
Two fixed, non-conductive, isolated rings of radii 25 cm are electrified and brought close to each other so that they are parallel. The distance between them is 1 m. You know that one of them has a charge of 1 nC(Nano Coulomb) evenly distributed on it, but you are not sure ...
June 13, 2013 by Physics Lover

physics
A small sperical insulator of mass 8.00X10^-2 kg and charge +0.600 mC is hung by a thin wire of negligible mass. A charge of -0.900 mC is held 0.150 m away from the spere and directly to the right of it, so the wire makes an angle [theta] with the vertical. Find (a) the angle...
June 30, 2008 by H

Physics
An electric force moves a charge of +1.40 x 10^-4 C from point A to point B and performs 4.70 x 10^-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two points? ____________J (b) Determine the ...
September 3, 2007 by Mary

college physics
Consider a long charged straight wire that lies fixed and a particle of charge +2e and mass 6.70E-27 kg. When the particle is at a distance 1.31 cm from the wire it has a speed 2.30E+5 m/s, going away from the wire. When it is at a new distance of 2.71 cm, its speed is 3.10E+6...
January 27, 2010 by jibjab

physics
A uniform electric field of 500. V/m is directed in the negative x direction. A +15ìC charge moves from the origin to the point (x,y) = (20.0 cm, 50.0 cm). (a) what was the change in the potential energy of this charge? (b) Through what potential difference did the charge ...
September 8, 2007 by frank

physics
Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)
June 17, 2012 by LL

physics
Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)
June 17, 2012 by LL

Physics
Two small spheres spaced 20.0 centimeters apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10 −21 newtons?
January 24, 2014 by James

Physics
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 2.26 × 10-11 m. Determine the magnitude of the electron's ...
September 4, 2014 by Elle

physics
An equilateral triangle has sides of 0.15 m. Charges of -9.4, +8.0, and +2.5 µC are located at the corners of the triangle. Find the magnitude of the net electrostatic force exerted on the 2.5-µC charge. each cahrge has X10^-6 btw
January 30, 2011 by hearttyy

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

Physics
1)When two bodies are charged, the total charge before and after charging remains the same because of: A)quantization of charges B)conservation of charges C)law of induction D)coulomb's law I got C but im not sure. I couldn't find anything to state otherwise. 2)When a ...
April 9, 2008 by Jon

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 ...
September 1, 2011 by TP

physics
Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell with total charge 20...
November 8, 2013 by rickross

Physics
Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell with total charge 20...
November 8, 2013 by rickross

Physics
A charge of +2q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
September 2, 2007 by Mary

physics
A charge of +4q is fixed to one corner of a square, while a charge of -9q is fixed to the opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
January 23, 2010 by Anonymous

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 13, 2014 by Liz

Physics help
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 14, 2014 by Liz

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 14, 2014 by Liz

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 15, 2014 by Liz

CalcPhys
In an electricity experiment, a 1.30g plastic ball is suspended on a 56.0cm long string and given an electric charge. A charged rod brought near the ball exerts a horizontal electrical force F⃗ elec on it, causing the ball to swing out to a 25.0∘ angle and remain ...
October 1, 2014 by Dib

Physics
In an electricity experiment, a 0.900g plastic ball is suspended on a 50.0cm long string and given an electric charge. A charged rod brought near the ball exerts a horizontal electrical force F⃗ elec on it, causing the ball to swing out to a 23.0∘ angle and remain ...
December 15, 2014 by Dan

Math - Credits & finance charges
On the May 1 billing date, Mary had a balance due of $970.60 on her credit card. The transactions during the following month were: May 5 Payment $400.00 May 10 Charge: airline tickets $381.00 May 22 Charge: hotel $270.60 May 25 Charge: florist $60.20 The interest rate on the ...
March 10, 2008 by Sunny

Physics
The drawings show three charges that have the same magnitude but different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is |q|= 5.5 µC, and the distance between them is d = 4.3 mm. Determine the magnitude of the net force on...
February 3, 2013 by Don

Physics
The drawing shows an equilateral triangle, each side of which has a length of 2.20 cm. Point charges are fixed to each corner, as shown. The 4.00 µC charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of ...
March 24, 2014 by Joe Santhosh

physics
If the magnitude of the electric field in air exceeds roughly 3 106 N/C, the air breaks down and a spark forms. For a two-disk capacitor of radius 49 cm with a gap of 1 mm, what is the maximum charge (plus and minus) that can be placed on the disks without a spark forming (...
February 10, 2012 by james

Physics
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 2.26 × 10-11 m. Determine the magnitude of the electron's ...
September 5, 2014 by Elle

physics
A 3.90 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=14.1N at an angle theta=32.5degrees above the horizontal, as shown. a.) What is the magnitude of the acceleration of the block when the force is applied? b.) What is the ...
October 8, 2015 by Carly

pre - CALCULUS
A gas company has the following rate schedule for natural gas usage in single-family residences: Monthly service charge Per therm service charge 1st 25 therms Over 25 therms $8.80 $0.6686/therm $0.85870/therm What is the charge for using 25 therms in one month? Show your work...
April 9, 2015 by Ciara

Physics please clarify
A charge of +2q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners? For Further ...
September 3, 2007 by Mary

Physics
A proton is located at a distance of 0.430 m from a point charge of +8.30 µC. The repulsive electric force moves the proton until it is at a distance of 1.55 m from the charge. Suppose that the electric potential energy lost by the system is carried off by a photon that is ...
April 6, 2012 by DCM

Algebra
The sum of the charges of the quarks in a particles gives the overall charge of the particles. Two up quarks and a down quark make a proton, which has a charge 1. On the other hand, two down quarks and an up quark make a neutron, which has a charge 0. What is the charge of an ...
March 1, 2009 by Cassie

Algebra
The sum of the charges of the quarks in a particles gives the overall charge of the particles. Two up quarks and a down quark make a proton, which has a charge 1. On the other hand, two down quarks and an up quark make a neutron, which has a charge 0. What is the charge of an ...
March 1, 2009 by Cassie

Physics
Due to friction with the air, an airplane has acquired a net charge of 1.70 10-5 C. The plane moves with a speed of 3.15 102 m/s at an angle with respect to the earth's magnetic field, the magnitude of which is 5.00 10-5 T. The magnetic force on the airplane has a magnitude of...
September 27, 2007 by Mary

Physics
A 7.25 μC and a -2.00 μC charge are placed 20 cm apart. Where can a third charge be placed so that it experiences no net force. Express your answer in cm. The answer is 22.12 from the online answer key, but how do you set this up?
June 24, 2016 by Kim

Science--Physics--check answers
1. A football player pushes a dummy forwards at a constant 0.85m/s for 11m using 7150 J of energy. The dummy has a mass of 120 kg. Find the force the football player exerts, find the frictional force the dummy exerts. - for my answer I got 1176N as the force the football ...
February 3, 2014 by Diane

physics
Two point charges of -86.5 mC and 36.3 mC are held fixed on an x axis at the origin and x = 24.4 cm, respectively. What are the magnitude and direction of the total electrostatic force on a third charge of 18.8 mC placed at (a) x = 48.8 cm (b) x = 97.6 cm I've tried everything...
April 14, 2016 by tim

college physics
A fisherman poles a boat as he searches for his next catch. He pushes parallel to the length of the light pole, exerting a force of 245 on the bottom of a shallow lake. The pole lies in the vertical plane containing the boat's keel. At one moment, the pole makes an angle of 34...
March 2, 2015 by molly

Physics
Find the magnitude of the gravitational attraction force that the earth exerts on a 62-kilogram astronaut who is 8.00 X 10^7 meters away from the center of the earth. Useful numbers: M^earth=5.98 X 10^24kg; G=6.67 X 10^-11 N*m^2kg^-2 Please walk me through your steps, don't ...
June 11, 2012 by Jen

College Physics
1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the x-axis).
July 9, 2013 by Joshua

Physics
An electron in an electron beam experiences a downward force of 2.0 x 10^-14 N while traveling in a magnetic field of 8.8 x 10 ^-2 T west. The charge on a proton is 1.60×10^−19. a) What is the magnitude of the velocity? Answer in units of m/s
October 16, 2014 by Alisha

Physics
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 914 N and the drag force has a magnitude of 1120 N. The mass of the sky ...
October 3, 2012 by Donald

MATH
The demand for your college newspaper is 2200 copies each week if the paper is given away free of charge and drops to 1100 each week if the charge is 10/copy. However, the university is only prepared to supply 600 copies each week free of charge but will supply 1600 each week ...
September 14, 2009 by Sabrina

math
The demand for your college newspaper is 2200 copies each week if the paper is given away free of charge and drops to 1000 each week if the charge is 10/copy. However, the university is only prepared to supply 600 copies each week free of charge but will supply 1400 each week ...
February 18, 2010 by marisa

classical physics
Question 14 Give reasons for the answers to each of the following questions: a) Can a normal force be horizontal? b) Can a normal force be directed vertically downward? c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be ...
March 22, 2013 by Pritesh

Chemistry
If you have to write the products of the chemical reaction Fe+O*2( asterisk means subscript),how would you know the charge of Fe in the compound FeO? If the charge is 2+, then the product would be FeO, but if the charge was 3+, then the product would be Fe*2O*3. Thanks!
April 17, 2010 by Emily

physics
object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and show all calculations.
March 31, 2011 by OMar

physics
object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and show all calculations.
October 14, 2011 by luna

Physics
A small car (mass 380 ) is pushing a large truck (mass 1000 ) due east on a level road. The car exerts a horizontal force of 1580 on the truck. What is the magnitude of the force that the truck exerts on the car?
July 28, 2012 by anonymous

Physics
Charge +Q = +7.10 nC is uniformly distributed along the right half of a thin rod bent into a semicirle of radius R = 3.60 cm, while charge −Q = −7.10 nC is uniformly distributed along the left half of the rod. What is the magnitude and direction of the electric field at ...
January 24, 2017 by Gordon

physics
There is a 0.225 T magnetic field directed along the +x axis and a field of unknown magnitude along the +y axis. A particle carrying a charge of 7.20 10-5 C experiences a maximum force of 0.455 N when traveling at a speed of 2 104 m/s through the region where the fields are. ...
February 10, 2008 by rick

Physics
The figure shows portions of two large, parallel, non-conducting sheets, each with a fixed uniform charge on one side. The magnitudes of the surface charge densities are σ(+) = 4 μC/m2 for the positively charged sheet and σ(-) = 10 μC/m2 for the negatively ...
February 17, 2014 by Lyra

Physics
An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.10 106 V and then enters a uniform magnetic field whose magnitude is 3.10 T. The -particle moves perpendicular to the magnetic field ...
February 6, 2012 by DCM

Physics
An á-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The á-particle moves perpendicular to the magnetic ...
March 25, 2013 by Don

AP PHYSICS PLEASE HELP
A spherical surface has a radious of .150 meters. A charge of +85.0 uC is placed on the sphere. A. decribe what happens to the electric potential of a -5.0 pC charge that is moved from a very far distance from the sphere to a point 0.100 meters away from the sphere. B. Decribe...
April 3, 2011 by Sanjida

physics
A charge of -2q is placed a distance r from the origin and a charge of +2q is placed a distance 2r from the origin. What is the amount of work needed to move a charge of q to the origin from infinity? I don't get the question. And please explain to me how can I do it.
March 23, 2008 by Shelly

physics
2 small conducting spheres are identical except that sphere x has a charge of -10 microcoulombs and sphere y has a charge of +6 microcoulombs after the spheres are brought and then separated what is the charge on each sphere in miicrocoulombs?
January 17, 2012 by Anonymous

Physics
Electric charge charge is distributed uniformly along a thin rod of length "a", with total charge Q. Take the potential to be zero at infinity find the potential at P. If z>>a, what would be the potential at p? From potential find the electric field at point p for z>&...
May 22, 2013 by Anne

Physics
A person pushes on a 60-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.68. (a) If the refrigerator does not move, what are the magnitude and direction of the static ...
February 2, 2011 by Tiffany

Physics
A person pushes on a 56-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.58. (a) If the refrigerator does not move, what are the magnitude and direction of the static ...
March 27, 2015 by Physics2hard4me

physics
A person pushes on a 55-kg refrigerator with a horizontal force of -250 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.56. (a) If the refrigerator does not move, what are the magnitude and direction of the ...
January 8, 2017 by Kyle

physics
A person exerts a horizontal force of 36 N on the end of a door 97cm wide. What is the magnitude of the torque if the force is exerted perpendicular to the door and What is the magnitude of the torque if the force is exerted at a 70.0 angle to the face of the door? Thank you
May 14, 2012 by emmie

physics
A skydiver weighing 840 N opens his parachute at the appropriate height from the ground. The air exerts a significant upward drag force, which is initially greater than the weight of the diver. This helps to slow the skydiver down. What is the diver's acceleration (both ...
December 12, 2014 by mathew

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

Physics
2. Charge q1 is located at (0,+30 cm). Charge q2 is located at (0, -30 cm) q1 = +25 pC q2= -75 pC A) Calculate the potential energy of the charges B) Calculate V1, the electric potential at the orgin due to charge q1, and V2, the electric potential at the orgin due to charge ...
April 12, 2011 by YoungTangerine

Physics
Three point charges + q, -q and + q are placed at the vertices P, Q and R of an equilateral triangle. If F=1/4ðE q 2/ r2 where r is the side of the triangle, What is the force on charge at P due to charges at Q and R? It is along which direction.? Since one charge is +ve ...
September 1, 2011 by Prathiksha

physics
Two spheres with charges of 4.00nC and 3.00nC are placed 0.500m apart. At what point between the two charges must the third charge of 2.00cN be placed so that the net electrostatic force acting on this charge is zero?
April 5, 2012 by Megan

Physics
A person pushes on a 56-kg refrigerator with a horizontal force of -251 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.7. (a) If the refrigerator does not move, what are the magnitude and direction of the ...
October 2, 2013 by Heather

Physics
A +3.0 nC charge is at x=0 cm and a -1.0 nC charge is at x=4 cm. At what point or points on the x-axis is the electric potential zero?
February 3, 2011 by Lauren

physic
DR.BOB Help me!!!!!!!!! The electric field at a distance of 0.4m from a point charge q is 20.0N/C. Find the charge “q"
March 14, 2012 by HELPPPPP!!

physics
An object has a charge of −2.4 ìC. How many electrons must be removed so that the charge becomes +2.8 ìC
January 18, 2013 by Anonymous

Physics
If the thickness of the probe in the direction of B is 1.97 mm, calculate the charge-carrier density (each of charge e).
August 2, 2014 by Thomas

English
Compare the attitudes of warfare in 'Charge Of The Light Brigade' and 'Bayonet Charge.'
December 12, 2016 by Anonymous

Physics
As you lift a chair to store is upside down on a desk, gravity exerts a force, mg, downward and you exert a force of the same magnitude upwards. The two forces are equal in magnitude and opposite in direction. From this is would appear that no work was done, but you know you ...
March 21, 2012 by Becky

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