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February 8, 2016

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

Number of results: 30,778

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 1.6010^−19. a) What is the magnitude of the velocity? Answer in units of m/s
October 16, 2014 by Alisha

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

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

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

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
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 -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 -particle moves perpendicular to the magnetic field...
March 25, 2013 by Don

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 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=1/4E 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 other...
September 1, 2011 by Prathiksha

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
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 +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 C. How many electrons must be removed so that the charge becomes +2.8 C
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

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

Physics
A uranium nucleus (mass 238 u, charge 92e) decays, emitting an alpha particle (mass 4 u, charge 2e) and leaving a thorium nucleus (mass 234 u, charge 90e). At the instant the alpha particle leaves the nucleus, the centers of the two are 5.5fm apart and essentially at rest. ...
February 26, 2015 by Nguyen Nguyen

Physics
A rod has a charge of -2.0 C. How many electrons must be removed so that the charge becomes +3.3 C
April 19, 2010 by Arnold Manguy

physics
The ratio og intantanous charge and maximum charge on the plates of capacitor at T=RC is ??
September 7, 2015 by Muqadas

physics
The ratio of instantanious charge and maximum charge on the plates of capacitor at T=RC is ??
September 7, 2015 by Muqadas kainat

English
No charge does it mean free example: Art Gallery of Queensland - No charge please help
April 4, 2009 by Cyrus

physics
An electron floats at rest above a sheet of charge with uniform charge density x. What is x in C/m^2
October 21, 2013 by Saiba

physics
The charge carried by one electron is e = -1.6 10-19 C. The number of electrons necessary to produce a charge of -1.0 C is:
March 13, 2014 by shirly

physics
The electric potential increases from 10 V to 70 V from the bottom plate to the top plate of a parallel-plate capacitor. We are going to move a charge of +5 x 10-4 C from the bottom plate to the top plate. What is the magnitude of the change in potential energy of this charge...
April 28, 2014 by Amanda

Physics
a) What is the magnitude of the gravitational force that the Sun exerts on Saturn? b) What is the magnitude of the gravitational force that Saturn exerts on the Sun?
October 23, 2012 by Ryan

Value of a Charge of a Body (Physics 11th Grade)
What is the value of a charge of a body that carries 20 excess electrons? I think that the question asks you to pretend that something is negatively charged by 20 electrons. So I think you take the charge of an electron, which is 1.6 x 10^-19, and multiply it by 20. If you do ...
February 25, 2011 by Angela

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
February 5, 2010 by Priscilla

physics
A charge of 12 C, traveling with a speed of 9.0 x 106 m/s in a direction perpendicular to a magnetic field, experiences a magnetic force of 8.7 x 10-3 N. What is the magnitude of the field?
April 1, 2013 by adrienne

Physics
The figure below shows two pint charges, each of -2Q, fixed on the y-axis at y = +a and at y = -a . A third points charge -Q is placed on the x-axis at x = 2a . Express all algebraic answers in terms of Q, a, and fundamental constants. (a) What is the net force (magnitude and ...
September 5, 2010 by David

Physics - electric field intesity (check +help)
Points A and B are 13.0 apart. A charge of +8.0mu is placed at A and another charge at +5.0mu is placed at B. Point P i located 5.0cm from A and 12.0cm from B. What is the magnitude and direction of the electric field intensity at P? Ans: i got the magnitude as 2.9*10^, ...
December 4, 2010 by Farah

Physics
Three charged particles are arranged on corners of a square as shown in the figure below, with charge -Q on both the particle at the upper left corner and the particle on the lower right corner, and charge +2Q on the particle at the lower left corner. (i) What is the direction...
May 21, 2015 by Anonymous

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. ...
April 11, 2007 by Mischa

Physics
In a lightning bolt, 16 C of charge flows in a time of 1.5 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 24 m from the bolt? please tell me where I am going wrong. B...
September 28, 2007 by Mary

Physics
Sue and Jenny kick a soccer ball at exactly the same time. Sues foot exerts a force of 49.9 N to the north. Jennys foot exerts a force of 119.7 N to the east. a) What is the magnitude of the resultant force on the ball? Answer in units of N b) What is the direction of the ...
November 2, 2013 by Katrina

physics
The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 1030 kg, mass of earth=5.98 1024 kg, mass of moon=7.35 1022 kg. The distances shown in the drawing are rSM = 1.50 ...
March 28, 2015 by Kristyn

physics
The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 1030 kg, mass of earth=5.98 1024 kg, mass of moon=7.35 1022 kg. The distances shown in the drawing are rSM = 1.50 ...
March 28, 2015 by Kristyn

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

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?
January 22, 2012 by john

Physics
Three point charges of 8 C, 3 C, and -5 C, are locate at the top, bottom left, and bottom right corners respectively of an equilateral triangle of side 1. Find the magnitude and direction of the net force on the 3 C charge.
March 16, 2014 by Anonymous

Conservation Charge- Physics
Please help me with this question. What particle has exactly one quantums unit of charge?
November 5, 2007 by JoAnne

Physics/Chemistry
Does an electroscope losing its charge by being grounded violate the law of conservation of charge?
May 5, 2012 by Helen

Science
Consider 3 identical metal spheres A,B and C. A carries a charge of +5q b carries a charge of -q and C carries no net charge. Sphere A and B are touched together and then separated. C is then touched to A and separated from it.
August 17, 2015 by Debbie

Chemistry
Does Cl2 (chlorine) have a -2 charge or -4 charge since there are 2 of them?
October 26, 2009 by Holly Y.

physics
the side of an equilateral triangle is 20 cm identical charges of 1.5x 10^-5 C are placed at each of the 3 vertices. If a test charge is placed at the middle of equilateral triangle what force would be acting on the test charge?
November 13, 2012 by jesmaincruz

chemistry
Gallium Arsenide ---------------- The charge carrier density of GaAs at 31o C is 2.25x106 cm-3. What is the charge carrier density (in cm-3) at 175oC? (The bandgap of GaAs is 1.42 eV. ) I am trying with arrhenius relationship but get confused over "charge carrier density"
August 25, 2014 by WIlliam

science
If the magnitude of the electric field in air exceeds roughly 3 X10^6 N/C, the air breaks down and a spark forms. For a two-disk capacitor of radius 52 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 11, 2012 by Brittney

Physics
A charge of 6.0 mC is to be split into two parts that are then separated by 3.00 mm. What is the maximum possible magnitude of the electrostatic force between those two parts?
February 2, 2012 by Aliyah

Physics
d. Now you pull your sister across the floor so that she moves with increasing speed (accelerates). Compare the magnitude of the force exerted by you on your sister, with the magnitude of the force she exerts on you. Are they the same or different? If they are not the same, ...
October 25, 2008 by Tony

Physics
Sue and Jenny kick a soccer ball at exactly the same time. Sues foot exerts a force of 56.6 N to the north. Jennys foot exerts a force of 88.6 N to the east. a) What is the magnitude of the resultant force on the ball? Answer in units of N b) What is the direction of the ...
September 11, 2011 by Milan

Physics PLEASE HELP ASAP :)
A small spherical insulator of mass 8.96 10-2 kg and charge +0.600 μC is hung by a thread 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 thread makes an angle θ with the vertical (see ...
January 28, 2013 by Chelsea

Physics
The Earth has an electric field with magnitude roughly 100 N/C at its surface. A) Assuming there is a point charge at the earth's center creating this field, how much charge does the earth posses? Treat the earth as a sphere of radius 6.37 * 10^6 m. B)As the earth orbits the ...
March 6, 2008 by jenish

Calculating Charge on a Polpetide
10) What is the charge on the peptide CHEMISTRY at pH 8.3?? How would you go about this?Look at the ionizable groups? Thanks, Rachel
January 19, 2009 by Rachel

physics
A metal sphere has a charge of +6.4 C. What is the net charge after 4.1 x 1013 electrons have been placed on it?
October 11, 2011 by scott

Calculus
The total charge in an electrical circuit as a function of time is given by q=t/(t^2+1) coulombs. Find the maximum charge of q.
March 10, 2012 by Candy

physics
Two small pith balls, each of mass m = 11.2 g, are suspended from the ceiling of the physics lab by 1.7 m long fine strings and are not moving. If the angle which each string makes with the vertical is = 30.4, and the charges on the two balls are equal, what is the ...
June 5, 2012 by bossman

physics
Two small pith balls, each of mass m = 11.2 g, are suspended from the ceiling of the physics lab by 1.7 m long fine strings and are not moving. If the angle which each string makes with the vertical is = 30.4, and the charges on the two balls are equal, what is the ...
June 5, 2012 by Hannah (Please Help)

physics
A student pulls a 60.-newton sled with a force having a magnitude of 20. newtons. What is the magnitude of the force that the sled exerts on the student
December 28, 2010 by cookie

physics
A student pulls a 60 newton sled with a force having a magnitude of 20 newtons. what is the magnitude of the force that the sled exerts on the student?
January 16, 2011 by jill

Chemistry
What is a molecular dipole moment? A. A separation of charge characterizing a nonpolar covalent bond B. A separation of charge forming a positive and a negative end of a molecule C. The arrangement of charges around an atom in a nonpolar molecule D. A net cancellation of ...
February 20, 2015 by Abby

Physics
In a thundercloud there may be an electric charge of 18 C near the top of the cloud and −18 C near the bottom of the cloud. If these charges are separated by about 7 km, what is the magnitude of the elec- tric force between these two sets of charges? The electric force ...
April 8, 2011 by Jen

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 9, 2012 by Anonymous

Physics, van de graff generators...
When a small metal ball with a charge is placed in an electrical field supplie dby a van de graff generator, it experiences a force from the generator, and thus it applies a reaction force. But does the ball also apply a force met with a reaction force of the generator? Also, ...
June 22, 2006 by TJ

Chemistry
How is the ionic charge of a group 1A,2A, or 3A ion determined? Group IA elements have 1 electron in their outer shell. Group IIA elements have 2 electrons in their outer shell. Group IIIA elements have 3 electrons in their outer shell. These elements lose 1, 2, or 3 electrons...
January 4, 2007 by Dennis

Physics 2
four identical charges (q = +3C) are arranged in a form of a rectangle. what are the magnitude and direction of the net electric force on the charge in the lower right corner attributable to the other three charges? distances are in meters.
August 16, 2014 by Naomi

PHysics
A chain consisting of five links, each of mass 0.150 kg, is lifted vertically with a constant acceleration of a = 2.2 m/s2. Find the magnitude of the force that link 3 exerts on link 2. What is the magnitude of the force F that must be exerted on the top link to achieve this ...
February 21, 2012 by Steve

physics
You have a parallel plate capacitor (with air between its plates) which is attached to a voltage source until the capacitor is fully charged. (a)After detaching the capcitor from the voltage source, you move the capacitor's plates farther apart; which of the following will ...
March 20, 2012 by Rebecca

Physics
ANY ANSWERS WILL HELP! THANKS! 1. Isolated points of electric charge are called ____. 4b. ____ was the American physicist who first measured this fundamental unit of charge. 5. This type of electrification occurs when the charging rod touches an electroscope. 6. This type of ...
December 17, 2013 by Al

Physics
How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically?
October 21, 2007 by Adam

Physics
How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically?
June 25, 2010 by Richard

physics
metal sphere has a charge of +10C. What is the net charge after 5.1 x 1013 electrons have been placed on it?
February 11, 2011 by Edel

Physics
A metal sphere has a charge of +12C. What is the net charge after 2.1 x 1013 electrons have been placed on it?
November 11, 2011 by Krist

Physics
A metal sphere has a charge of +12uC(microcoulombs). What is the net charge after 2.1 x 10^13 electrons have been placed on it?
November 14, 2011 by Kay

Math
eff cuts lawns for $20.00.next year, he will charge $4.00 more per lawn. what is the percent increase will he charge
March 8, 2012 by Marie

Easy chemistry
Whats the charge on a carbon cation?? I believe it is a positive charge, but does it have a number along with it?? not sure..
May 17, 2013 by Timofey

Chemistry
What is the name of CrS subscript 3? Chromium (III) Sulfide? But S has a -2 charge... -2(3)=-6 Cancellation of the charge need to occur. I don't understand this.
October 17, 2015 by Anonymous

math
speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of $15 + 5cents/ min.2nd,a monthly charge of $5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge. a)investigate the 3 schemes to ...
May 10, 2010 by rima

Physics
Consider three conducting spheres each 10 cm in diameter. A has a net charge of 5 C, B has a net charge of 10 C, and C has a net charge of zero, but is placed in an electric field of 1000 V/m. Rank the electric field strength inside the spheres from weakest to strongest.
June 13, 2012 by Beth

physics
f Beth exerts a force of 157 . 9 N on the rope, what is the magnitude of the upward component of the force acting on the stake? Answer in units of N
October 29, 2014 by Anonymous

physics
8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are true? A) Only i. B) ...
February 9, 2013 by james

physics
8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are true? A) Only i. B) ...
February 9, 2013 by John

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 ...
December 5, 2011 by mo

Physics
idential point charges of 1.7e-6 C are fixed diagonally on 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 their magnitudes. Find the sign and ...
March 15, 2009 by andrea

2 more physics questions I need help on, please?
In which of these situations does more charge flow past a given point on a wire? a. Current of 4 A in 1 min b. Current of 2 A in 0.5 min c. Current of 8 A in 2 min d. All are the same charge I think the answer is C? Since the formula for finding current is 1 = C / s = 1 Ampere...
April 23, 2011 by physicsclass

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