Sunday

September 21, 2014

September 21, 2014

Number of results: 102,261

**physics**

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
*September 26, 2010 by Anonymous*

**physics**

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
*September 26, 2010 by Anonymous*

**physics**

Two charged spheres are 18.0 cm apart. They are moved, and the force on each of them is found to have been doubled. How far apart are they now? ______cm
*March 22, 2010 by Dar*

**physics**

Two charged spheres are 8.00 apart. They are moved, and the force on each of them is found to have been tripled
*March 4, 2011 by martha*

**science**

two equally charged spheres, X and Y, repel each other with a force of 8.0 x 10^-6 N when placed a certain distance apart. Another identical, but uncharged, sphere is touched to sphere Y and then moved next to sphere X. Calculate the electric force acting on sphere Y.
*March 4, 2011 by rachel*

**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 12**

"Two small spheres are located 0.50m apart. Both have the same charge on them. If the repulsive force is 5.0N, what charge is on the spheres, in microcoulombs?" I can begin to use my electrical force formula, but then I have two unknown charges. The anwser is 12 uC, but I am ...
*December 9, 2008 by solexgirl12*

**physics**

Two charged bodies exert a force of 0.245 N on each other. If they are moved so that they are one-fifth as far apart, what force is exerted?
*February 11, 2010 by emma*

**Physics**

Two charged bodies exert a force of 0.415 N on each other. If they are moved so that they are one-third as far apart, what force is exerted?
*March 29, 2010 by Sasha*

**physics**

Two charged dust particles exert a force of 5.3 x 10^-2 N on each other. What will be the force if they are moved so they are only one-ninth as far apart?
*July 13, 2011 by amanda *

**physics**

Two charged bodies exert a force of 0.225 N on each other. If they are moved so that they are one-third as far apart, what force is exerted?
*March 23, 2014 by Donna*

**Physics**

Two charged dust particles exert a force of 3.8 10^-2 N on each other. What will be the force if they are moved so they are only one third as far apart? ________N
*March 22, 2010 by Dar*

**Physics - Charge on sphere (check + help)**

Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with their centers 15cm apart. What is the ...
*October 30, 2010 by Farah*

**PHYSICS help please**

Two small charged balls have a repulsive force of 0.12 N when they are separated by a distance of 0.85 m. The balls are moved closer together, until the repulsive force is 0.60 N. How far apart are they now?
*February 22, 2012 by Kayla*

**physics **

Two small, identical metal spheres contain excess charges of -10.0 x 10^-6 C and 6.0 x 10^-6 C, respectively. The spheres are mounted on insulated stands and placed 0.40 m apart. Determine the magnitude and direction of the force between the spheres.
*May 16, 2012 by R*

**physics**

Two small charged balls have a repulsive force of 0.20N when they are separated by a distance of 0.90m . The balls are moved closer together, until the repulsive force is 0.58N . How far apart are they now? Express your answer to two significant figures and include the ...
*January 27, 2014 by James*

**Physics**

Two charged smoke particles exert a force of 4.2x10^-2 N on each other. What will be the force if they are moved so they are only one eighth as far apart? F= 4.2x10^-2 N K= 8.99x10^9 e= 1.6x10^-19 Do I solve for r even though they're asking me to find the force?
*May 14, 2010 by Ali*

**physics**

Two charged bodies exert a force of 0.390 N on each other. If they are moved so that they are one-third as far apart, what force is exerted? is it .390 times 3??
*January 17, 2008 by tom*

**Physics**

1. The electrostatic force of attraction between two small spheres that are 1.0 meter apart is F. If the distance between the spheres is decreased to 0.5 meter, the electrostatic force will be a) F/2 b) 2f c) F/4 d) 4F I know when the distance is decreased the Fe would ...
*February 3, 2010 by Priscilla*

**Physics**

Two metal spheres, each weighing 24.0 kg are placed 0.0500 m apart. Calculate the magnitude of the gravitational force the two spheres exert on each other.
*November 3, 2010 by Andrea*

**Math Ratios**

Force of attraction between two spheres is 3.75 x 10^-5 dyne when the spheres are placed 18 cm apart. What is force of attraction when placed 52 cm apart?
*July 16, 2013 by Lynda*

**Physics**

A +2 uC and a +10 uC are 3cm apart a) Find the electrostatic force between the charges b) If the charges are brought together and touched, what would be the charge on each one? c) These spheres are then moved 3 cm apart. What would be the force between them?
*January 26, 2013 by Betty*

**Physics**

Two insulated charged metallic spheres A & B have their centres separated by a distance of 50cm in air. Calculate the force of electrostatic repulsion between them. If the charge on each is +5.0*10^-8c. The radii of A & B are negligible compared to their distance of separation...
*July 9, 2011 by Abdullahi*

**physics**

two charged bodies exert a force of 86N on each other. If they are moved so that they are 6 times farther apart, what is the new force that they will exert on each other?
*February 24, 2012 by Anonymous*

**physics**

What is the force between two charged spheres 1.25 cm apart if the charge on one sphere is 2.50 C and the charge on other sphere is 1.75 X 10^-8 C
*February 16, 2010 by Rony*

**Physics**

Two identical 21.6-kg spheres of radius 14 cm are 31.0 cm apart (center-to-center distance). (a) If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact? (b) If the spheres are initially at rest and just touching...
*November 3, 2010 by Oscar*

**Physics**

Two identical 21.2-kg spheres of radius 12 cm are 30.6 cm apart (center-to-center distance). (a) If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact? (b) If the spheres are initially at rest and just touching...
*November 4, 2010 by Oscar*

**Physics**

Two identical 19.8-kg spheres of radius 12 cm are 29.2 cm apart (center-to-center distance). (a) If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact? (b) If the spheres are initially at rest and just touching...
*November 4, 2010 by Oscar*

**physics**

At the point of fission, a nucleus with 92 protons is divided into two smaller spheres, each with 46 protons and a radius of 6.4 10-15 m. What is the repulsive force pushing these two spheres apart?
*April 4, 2012 by Anonymous*

**Force between Charged Spheres (Physics 11th Grade)**

What is the force between two small charged spheres that have charges of 2 x 10^-7 and 3 x 10^-7 if the distance of r is 30 cm. I think you use Force = the constant of K multiplied by the product of the charges divided by the square of the distance again. If you plug in the ...
*February 25, 2011 by Angela*

**physics**

At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.08 multiplied by 10-15 m. What is the magnitude of the repulsive force pushing these two spheres apart?
*April 10, 2012 by brooke*

**Physics**

At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.11 ✕ 10-15 m. What is the magnitude of the repulsive force pushing these two spheres apart?
*March 17, 2014 by bro*

**Physics**

7. Two metal spheres are suspended from insulating threads. A negatively charged rod is brought near these spheres. One sphere is pushed away from the rod and the other is attracted toward it. Describe the behavior of the spheres. SOLUTION: ----> {Metal sphere attracted to ...
*May 29, 2009 by sally*

**Math Ratios**

Force of attraction between two spheres is 3.75 x 10?-5 dyne when the spheres are placed 18 cm apart. What is force of attraction when placed 52 cm apartÉ
*July 16, 2013 by Lynda*

**physics**

A solid lead sphere of radius 10 m (about 66 ft across!) has a mass of about 57 million kg. If two of these spheres are floating in deep space with their centers 20 m apart, the gravitational attraction between the spheres is only 540 N (about 120 lb). How large would this ...
*March 11, 2014 by anonymous*

**physic**

3. I have two identical dust particles. They are spheres with diameters of 0.0001 meter (about the same as a hair). They have the same density as water so they each have a mass of 10-12 kg. If each dust particle goes through a discharge so that 2.40 „e 10-10 C of electrons ...
*January 21, 2011 by sabrina*

**Physics**

Two 18.0 cm diameter charged rings face each other, 22.0 cm apart. The left ring is charged to + 40.0 nC and the right ring is charged to + 15.0 nC. What is the force on a + 0.50 nC charge placed at the mid point?
*February 10, 2011 by Please Help!!!!!!!!!!!*

**physics**

1.) A small sphere of charge 2.4 μC experience a force of 0.36 N when a second sphere of unknown charge is placed 5.5 cm from it. What is the charge of the second sphere? 2.) Two identically charged sphere placed 12 cm apart have an electric force of0.28 N between them. ...
*March 20, 2011 by Christine*

**Physics**

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC. What is the force on a 1.2 nC charge placed at the midpoint? I have already calculated the electric field between the two rings to be ...
*September 3, 2010 by David D.*

**Physics-mechanics**

Two spheres are placed so that their centers are 2.6m apart. the force bvetween the two spheres is 2.75 x 10 to the power of negative 12 Newton.What is the mass of each sphere if one sphere is twice the mass of the other sphere?
*December 24, 2012 by Rebecca*

**physics**

Two spheres are placed so that their centers are 2.6 meters apart. The force between the two spheres is 2.75x10^-12N What is the mass of each sphere if one sphere is twice the mass of the other sphere?
*May 27, 2009 by chelsea*

**Physics4**

2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of the Coulomb constant ...
*February 12, 2012 by jc*

**physics**

Two spheres are placed so that their centers are 2.9 m apart. The force between the two spheres is 2.60 multiplied by 10-12 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?
*December 11, 2010 by DESPERATE*

**Physics**

Coulomb measured the deflection of sphere A when spheres A and B had equal charges and were a distance d apart. He then made the charge on B one-third the charge on A. How far apart would the two spheres then have had to be for A to have had the same deflection that it had ...
*March 29, 2010 by Sasha*

**electrostatic physics**

2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of the Coulomb constant ...
*February 12, 2012 by jc*

**physics**

Two small nonconducting spheres have a total charge of 91.7 µC. (a) When placed 1.10 m apart, the force each exerts on the other is 12.0 N and is repulsive. What is the charge on each? (Round your answers to the nearest 0.1 µC.) (b) What if the force were attractive?
*July 17, 2012 by Bernice*

**physics**

The gravitatioinal force between two metal sphere in outer space is 2000 N. How large would the force be if the two spheres were four times farter apart?
*April 25, 2010 by Linda*

**physics**

calculate the force between two 5.0 kg spheres that are 2.5 m apart.
*January 11, 2011 by anonymous*

**physics**

calculate the force between two 5.0 kg spheres that are 2.5 m apart.
*January 11, 2011 by anonymous*

**physics**

If two charges are a distance R apart from eachother and their force is F, what will the force be if they are moved apart to a distance of 2R?
*January 30, 2013 by mike*

**Physics-mechanics**

Two spheres are placed so that their centers are 2.6 m apart. The force between the two spheres is 2.75 x 10^-12 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?(please use all the correct formula, and show all working because I want to ...
*December 27, 2012 by Rebecca*

**physics**

Two 5.0 g spheres are suspended from a long thread and seperated by a distance of 140mm. The spheres repel after being charged to +86nC. Find the angle
*April 10, 2011 by Mike*

**physics - science**

- two identical lead spheres have a combined mass of 12kg. the density of lead is 11400 kg m-3. find the radius of each sphere. calculate the gravitational force of attraction between the 2 spheres when they are touching. -two masses, one of 300g and one of 500g are placed ...
*September 16, 2008 by ally*

**physics**

Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart. F = G(m1)(m2)/r^2 = 6.67 x 10^-11(10.1)(45.4)/38.5^2 = 2.06 x 10 ^-11 N
*April 2, 2008 by Jon*

**Science**

What is the magnitude of the charge on two identical spheres that exert a force of 0.300 N when 75.0 apart?
*January 25, 2010 by Michael*

**Physics**

The electrostatic force of attraction between two small spheres that are 1.0 meter apart is F. If the distance between the spheres is decreased to 0.5 meter, the electrostatic force will be a) F/2 b) 2f c) F/4 d) 4F I know when the distance is decreased the Fe would decrease ...
*February 3, 2010 by Priscilla*

**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**

two charges originally separated by 10cm are moved further apart untill the force between them has decreased by a factor of 10. How far apart are these charges?
*April 25, 2013 by radiant*

**physics repost**

Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart. F = G(m1)(m2)/r^2 = 6.67 x 10^-11(10.1)(45.4)/38.5^2 = 2.06 x 10 ^-11 N
*April 3, 2008 by Jon*

**Physics**

Calculate the force of gravitational attraction between two spheres of mass 10.1kg and 45.2 kg that are 38.5m apart.
*November 7, 2013 by Caitlin*

**Physics**

Calculate the force of gravitational attraction between two spheres of mass 10.1kg and 45.2 kg that are 38.5m apart.
*November 7, 2013 by Caitlin*

**Physics **

Two spheres with masses of 5.00 g and 10. kg respectively are .500 m apart. calculate the force of attraction between them.
*January 22, 2014 by Tanya*

**Mechanics:Statics**

Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.
*April 19, 2013 by Marc*

**physics**

how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if teh 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*

**Physical science**

Compute the gravitational force between two 1.00 kg lead spheres whose centers are 1.00 m apart?
*January 6, 2013 by Sara*

**Physics HELP!!**

Two iron spheres each have a volume of 10 cm^3 and a mass of 78g. How many electrons must be placed on each sphere so that the electrostatic force of repulsion between them just balances the force of gravitational attraction? Assume the distance between the spheres is more ...
*January 23, 2013 by Maria*

**Physics**

Two iron spheres each have a volume of 10 cm^3 and a mass of 78g. How many electrons must be placed on each sphere so that the electrostatic force of repulsion between them just balances the force of gravitational attraction? Assume the distance between the spheres is more ...
*January 21, 2012 by Alex*

**Physics**

Two small aluminum spheres, each having mass 2.65×10−2 , are separated by 85.0 . How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 4.00×104 (roughly four ton)? Assume...
*January 31, 2013 by Julie*

**PHYSICS**

Two small metal spheres with masses 2.0 g and 4.0 g are tied together by a 5.0 cm long massless string and are at rest on a frictionless surface. Each is charged to +2.0 ìC. (b) What is the tension in the string? (c) The string is cut. What is the speed of each sphere when ...
*February 24, 2010 by Arianne*

**Physics**

Two spheres of masses m = 1.09 g and m' = 1.03*10^2 kg are isolated from all other bodies and are initially at rest, with their centers a distance r = 14 cm apart. One minute later, the smaller sphere has moved 0.500 mm toward the larger sphere. Compute the acceleration and ...
*December 10, 2013 by BrandiB123456789*

**Physics - charge on sphere**

Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with their centers 15cm apart. What is the ...
*October 18, 2010 by Anonymous*

**Physics**

There are two conducting concentric hollow spheres of outer radii and ( ). The thickness of the material of both spheres is . The inner sphere is negatively charged with charge density . The larger sphere is positively charged with charge density . (a) What is the electric ...
*February 24, 2013 by P*

**Physics**

Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...
*February 7, 2012 by Collin*

**Physics!**

Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...
*February 7, 2012 by Collin*

**Physics!**

Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...
*February 7, 2012 by Collin*

**Physics**

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC.
*September 3, 2010 by David D.*

**physics**

Charged spheres A and B are in fixed positions (like in question #6) and have charges 3.6x10^-6 C and -5.4x10^-6 C respectively. Calculate the net force on sphere C, which has a charge of -9.9x10^-6 C.
*May 6, 2013 by help*

**Physics**

A charged particle A exerts a force of 2.39 ìN to the right on charged particle B when the particles are 13.3 mm apart. Particle B moves straight away from A to make the distance between them 16.1 mm. What vector force does particle B then exert on A?
*February 6, 2010 by Jan*

**physics**

Initially, both metal spheres are neutral. In a charging process, 1 × 1013 electrons are removed from one metal sphere and placed on a second sphere. Then the electrical poten- tial energy associated with the two spheres is found to be −0.061 J . The Coulomb constant is ...
*February 16, 2010 by Tj*

**physics**

Two metal spheres, each of mass 1 gm and radius 0.5 cm are placed on a smooth, horizontal, insulated plate such that their centers are 15 cm apart. One is charged to a potential 500 volt and the other to 1000 volt. What is the velocity of each sphere when they drift away to a ...
*June 18, 2009 by Sandhya*

**physics**

You have three identical charged spheres, each with a charge of 2.80 µC. You have arranged them so they are each at the corners of a square that measures 4m on a side. Find the magnitude of the electric field at the "empty" corner. (The corner with no charged sphere.)
*January 30, 2012 by CLaire*

**physics**

You have three identical charged spheres, each with a charge of 2.80 µC. You have arranged them so they are each at the corners of a square that measures 4m on a side. Find the magnitude of the electric field at the "empty" corner. (The corner with no charged sphere.)
*January 30, 2012 by CLaire*

**physics**

Two charged spheres of charge q and mass m are each hanging from strings and are at equilibrium as shown below: Give an expression for tanθ in terms of ke (use "k" to write ke), q, m, g (gravity), and d (the distance between the spheres). tanθ=
*January 20, 2014 by Anonymous*

**physical science 2**

Whatis the electrical force between two charged particles located 1.0 meter apart?
*February 7, 2010 by sara*

**physical science 2**

Whatis the electrical force between two charged particles located 1.0 meter apart?
*February 7, 2010 by sara*

**physics**

two lead spheres whose diameters are 20 cm and 2 cm are placed with centres 100 cm apart. Calculate the force of gravitation between them.(density of lead =11500 kg/m^3
*May 15, 2013 by Dhananjay*

**Physics**

Two 10-cm-diameter charged rings face each other, 20cm apart. The left ring is charged to -22nC and the right ring is charged to +22nC . What is the magnitude of the electric field E⃗ at the midpoint between the two rings?
*September 1, 2014 by Jenny*

**Physics - Coulombs Law**

Two identical objects have charges 6.0*10^-6 and -2.0*10^-6 respectively. When placed a distance d apart, their force of attraction is 2.0N If the objects touched together, then moved to a distance of separation of 2d, what will be the new force between them. Ans: I tried the ...
*October 17, 2010 by Anonymous*

**physics**

two charged objects carry a negative charge of 2*10c. calculate their distance apart if the force between them is 10n
*March 11, 2010 by innocent*

**Phyiscs - due at 11PM EST!!**

Two identical conducting spheres, fixed in place, attract each other with a force of 0.114 N when their center to center separation is 45.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a net positive charge and repel...
*April 12, 2011 by Bill*

**Physics**

Four uniform spheres, with masses mA = 37 kg, mB = 30 kg, mC = 220 kg, and mD = 55 kg, have (x, y) coordinates of (0, 50 cm), (0, 0), (-77 cm, 0), and (44 cm, 0), respectively. Find the net force on sphere B due to the other spheres. What are the (a)x and (b)y components of ...
*January 2, 2011 by Becky*

**physics**

two charged plates are 2mm apart. An electron escapes from the negatively charged plate and reaches the positively charged plate in 1.2*10^-8 seconds. Find the electric field between the plates?
*July 24, 2012 by Nowah*

**physics**

two charged plates are 2mm apart. An electron escapes from the negatively charged plate and reaches the positively charged plate in 1.2*10^-8 seconds. Find the electric field between the plates?
*July 24, 2012 by Nowah*

**Physics**

A governor (centrifugal pendulum) consists of two 200–g spheres attached by light, rigid 10.0–cm rods to a vertical rotating axle. The rods are hinged so that the spheres swing out from the axle as they rotate with it. However, when the angle θ is 45.0°, the spheres ...
*February 23, 2014 by Chrxeyshthoufov*

**Static Electricity. 11th Grade Pre-AP Physics**

Hi everyone! I need some help studying for a test on Static Electricity. I have a few review questions that I don't know how to do. Below they are numbered and in parenthesis I answered what I think you might have to do to get the answer. Please help me in any way you can. ...
*February 25, 2011 by Angela*

**Physics**

If the force between two charges decreases by a factor of 100 because the charges are moved further apart
*February 18, 2014 by Jake*

**Physics**

I've been working on this problem for quite some time now and still can not figure it out... Initially, both metal spheres are neutral. In a charging process, 1 × 1013 electrons are removed from one metal sphere and placed on a second sphere. Then the electrical poten- tial ...
*February 16, 2010 by Jonathan*

**chemistry**

Consider a system consisting of two oppositely charged spheres hanging by strings and separated by a distance r1, as shown in the accompanying illustration. Suppose they are separated to a larger distance r2 , by moving them apart along a track. What is the potential energy, ...
*October 11, 2011 by echo*

**Physics - Charged objects (check + help)**

Three charged objects are located t the vertices of a right triangle. Charge A (5*10^-6) has Cartesian coordinates (0,4; Charge B (-5.0*10^-6) is at the origin; charge c (+4.0*10^-6) has coordinates (5,0), where the coordinates are in meters. What is the net force on each ...
*October 26, 2010 by Anonymous*

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