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December 3, 2016

# Search: Physics - Charges on objects (check + help)

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Physics - Charges on objects (check + help)
Two identical objects have charges from +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 are touched together, then they moved to a distance of separation of 2d, what will be the new force between them? ...
October 26, 2010 by Anonymous

Physics
Four identical metal objects each carry different charges. The charges are +1.6, +8.2, -4.8, and -9.4 ìC. These objects are brought simultaneously into contact, so that each touches the others. Then they are separated. What is the final charge on each object?
April 19, 2010 by Anonymous

physics
An unstrained horizontal spring has a length of 0.33 m and a spring constant of 209 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes. Because of these charges, the spring stretches by 0.021 m relative...
August 28, 2014 by Anonymous

physics
A charge Q is to be divided on two objects. What should be the values of the charges on the object so that the force between the objects can be maximum?

physics
Four identical metallic objects carry the following charges: +7.8 µC, +4.2 µC, -2.2 µC, and -4.4 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated.
March 30, 2011 by Anonymous

science help
One group of students is investigating the properties of charged objects. Their observations are listed below. When two positively charged objects are brought close to each other, they push each other away. When two negatively charged objects are brought close to each other, ...
December 1, 2015 by Oscar

physics
Four identical metallic objects carry the following charges: +4.2 µC, +5.4 µC, -2.2 µC, and -4.4 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. How many electrons (or protons) make up the final charge on ...
September 2, 2009 by kary

IPC
i don't have a book or anything to go look all this stuff up so i really need help understanding this.. Which of the following statements is not true? a)negatively charged objects attract other negatively charged objects. b)postively charged objects attract negatively charged ...

physics
can you check this : a repelling force occurs between two charged objects when the charges are of a. unlike signs b. like signs c. equal magnitude d. unequal magnitude i chose B
March 14, 2009 by physics

Science
Heat flows in which direction? A)from solid objects to liquids B)from larger objects to smaller objects C)from warmer objects to cooler objects D)from more dense objects to less dense objects THANKS!
April 4, 2012 by Bella help please

Physics - inverse square law (check + help)
Two identical objects have charges from +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 are touched together, then they moved to a distance of separation of 2d, what will be the new force between them? ...
October 27, 2010 by Anonymous

Physics - inverse square law(check)
Two identical objects have charges from +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 are touched together, then they moved to a distance of separation of 2d, what will be the new force between them? ...
October 27, 2010 by Anonymous

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

Physics
Four identical metallic objects carry the following charges: +7.0 µC, +9.0 µC, -4.6 µC, and -1.2 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated A) What is the final charge on each object? B) How many ...
January 25, 2013 by Elizabeth

Physics - Charges at an angle (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 27, 2010 by Anonymous

physics
Four identical metallic objects carry the following charges: + 1.6, + 6.2, − 4.8, and . The objects are brought simultaneously into contact, so that each touches the others. Then they are separated, (a) What is the final charge on each object? (b) How many electrons (or ...
January 28, 2010 by Sam

physics
four identical metallic objects carry the following charges: 1.6, 6.2, -4.8, and -9.4 μC. the objects are brought simultaneously into contact, so that each touches the others. then they are separated. what is the final charge on each object? how many electrons (or protons...
April 22, 2010 by kim

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
In a vacuum, two particles have charges of q1 and q2, where q1 = +3.8C. They are separated by a distance of 0.37 m, and particle 1 experiences an attractive force of 4.7 N. What is the value of q2, with its sign? Two spherical objects are separated by a distance of 1.45 × 10-...
August 26, 2013 by Liz

physics
please check this one question: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational A
March 13, 2009 by physics

physics. Can you check my answer?
Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object...
February 11, 2009 by Jordan

Physics
Four identical metallic objects carry the following charges: +1.46, +6.39, -4.06, and -9.94C. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final charge on each object? (b) How many electrons (or ...
September 30, 2011 by Kristi

Physics
Four identical metallic objects carry the following charges: +1.46, +6.39, -4.06, and -9.94C. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final charge on each object? (b) How many electrons (or ...
October 1, 2011 by Kristi

Physics
Picture the following: A square with 4 point charges. Charges Q are diagonal from eachother, and charges -Q are diagonal from eachother. The length of each side is "a". One of the -Q charges is "kicked" away with an outward initial speed of V0, while the three other charges ...
February 12, 2011 by Rachel

Child development
Infants' naïve theory of physics leads them to believe that A.gravity is not important so floating objects are not unusual. b.one object striking a second object does not affect the second object. c.objects cannot move through other objects. objects move along disconnected, ...
October 9, 2015 by Woody

Child development
Infants' naïve theory of physics leads them to believe that a.gravity is not important so floating objects are not unusual. b.one object striking a second object does not affect the second object. c.objects cannot move through other objects. d.objects move along disconnected...
October 9, 2015 by Woody

physics
Why is there a minus sign in the formula Î”p/Î”t = âˆ’Î”EP/Î”s? Answer a. Objects are accelerated to higher kinetic energy. b. Objects seek zero motion. c. Objects are accelerated toward higher potential. d. Objects are accelerated away from higher potential.
October 15, 2010 by jim

Science
Can someone please check my answers and if they are wrong can you help me fix them? Thank so much!! 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. (2 points) the speeds of the objects the masses of the ...
January 24, 2014 by Melissa

Physics
Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges are separated by 3.7 x 10-10 m. The force...
January 13, 2012 by Anonymous

Physics
wo objects each have a positive charge. The total charge on both objects is 365 µC. When the objects are placed a distance of 1.30 m apart, each exerts an electrostatic force of 24.3 N on the other. What is the charge on each object? (Give your answers in µC.)
August 25, 2014 by Joe

PHYSICS
The force of repulsion between two identical negative charges is 3.95 N, when the charges are 35.0 cm apart. What is the magnitude of these charges?
May 12, 2015 by Jonny

Physics
Two objects are connected with a string. In the quantitative treatment of the problem we assume that the string exerts a tension force of magnitude T on each of the two objects. What do we need to assume for this assumption to be valid? a) the string may hang loose between the...
September 26, 2009 by Eric

Physics
I know that when objects are connected and a force is exerted on the connected objects, we treat them as a system with a single acceleration. I was just wondering if objects were piled on top of each other they would still be connected. if a horizontal force was exerted on one...
August 31, 2011 by Thara

PHYSICS
How does the magnitude of the electrical force between two charged objects depend on the distance between the charges? I really frustrated right now, and I can't figure out the answer too this question. Help pleeease :)
March 9, 2011 by RIHANNA

physics
2)Two objects are initially the same height above the ground. Simultaneously, one is released from rest and the other is shot horizontally with an initial speed of 2.5 m/s. The two objects collide after falling 20.0 m. How far apart were the objects initially?
March 11, 2015 by Anonymous

physics
2) Two objects are initially the same height above the ground. Simultaneously, one is released from rest and the other is shot horizontally with an initial speed of 2.5 m/s. The two objects collide after falling 20.0 m. How far apart were the objects initially?
March 11, 2015 by Anonymous

Physics 30
Two point charges objects produce an electric force on each other of 3.6x10^-2 N. What is the electric force between them if the distance is increased five times?
February 6, 2016 by elaine

Physics
There is an electric field at a certain point P, where initially there is no charge. A point-like object is placed at point P, and a force on the object is observed. Next the object is removed and another point-like object is placed at the same point. There is a force on this ...
September 24, 2010 by Max

physics
What is the purpose of a layer or copper or aluminum on the bottom of stainless steel cookware? All objects continuously emit radiant energy. Why then doesn't the temperature of all objects continuously decrease? All objects continuously absorb energy from their surroundings. ...
January 30, 2008 by Emily

physics
please help: A repelling force occurs between two charged objects when the charges are of a. unlike signs b. like signs c. equal magnitude d. unequal magnitude
March 12, 2009 by physics

Chemistry
I'm stuck on the concept of negative and positive charges. A dish has 10 + charges and 10 - charges. 2 of the negative charges are taken away. What is the overall charge? I think the answer is 2+ charges
September 9, 2008 by Glenn

Physics
the charges an coodinates of two points charges located in x-y palne are : q1=+3*10^-6 C ; x=+3.5 cm . y=+0,5 cm and q2=-4*10^ -6 C; x= - 2 cm y=+1.5 cm . (a)Find the electric potential at the origin(b)How much work must be done to locate these charges at their given positions...
February 22, 2012 by Jc

Physics
Hello, my problem is the next one: There are three objects that are launched at the Same time But with different angles( they describe proyectile motion ) . All the objects got the Same maximun height. My question is: Is the Initial velocity the Same for the three objects? Why...
October 11, 2016 by Arthur

maths/physics
Two objects are thrown simultaneously from the same height at 45° angles to the vertical with a speed of 20 m per second; one up, the other one down. Find the difference between the heights the objects will be at two seconds later. How are these objects moving in regards to ...
August 17, 2011 by Anonymous

Physics
We study the three point charges shown in the figure. They are held at the corners of an equilateral triangle with ℓ = 0.9 m. What is the electric potential energy of the system of three point charges? Use for the three charges q1 = +2Q, q2 = −3Q, and q3 = +Q, ...
February 7, 2016 by Emily

Physics
Does anyone know how to find the electric force of two objects if I have the distance and mass of the one of the objects? Thanks.
February 3, 2011 by jane

physics
Two point charges are 10.0 cm apart and have charges of 2.0 µC and -2.0 µC, respectively. What is the magnitude of the electric field at the midpoint between the two charges?
December 1, 2009 by Paulo

Physics
Does the law of inertia pertain to moving objects, objects at rest, or both? Support your answer with specific examples.
September 21, 2008 by Taylor

PHYSICS URGENT
While flying at an altitude of 7.25 km, you look out the window at various objects on the ground. If your ability to distinguish two objects is limited only by diffraction, find the smallest separation between two objects on the ground that you can resolve as distinguishable. ...
October 15, 2015 by Kent

physics
two charges of equal magnitude are 25.5 cm apart if the force between the charges is 155 N what is the magnitude of the charges
April 28, 2015 by j

physics
If a perfectly elastic colision between two objects, do both objects have the same kinetic energy after the collision?
November 8, 2007 by Anonymous

my math
True or false? Intentionally writing a check on an account with insufficient funds is allowed under certain conditions. I say false? Ben Spender writes a \$50 check which is returned by his bank with additional charges. The company he wrote the check to, Art Supply Inc., also ...
January 26, 2010 by Zoey

phYsics
Two identical objects each hold a net charge of q = 8e. If the gravitational force between the two objects exactly cancels the electrostatic force between the objects, what is the mass of each object? Where G: 6.67E-11 Ke=8.99E9 I know the equation is m=sqrt(ke*q^2/G) yet when...
April 6, 2010 by echem

physics 2
1) A spherical surface completely surrounds a collection of charges. Find the electric flux through the surface if the collection consists of a single +3.93E-6 C charge. 2) A plate carries a charge of -2.52μC, while a rod carries a charge of +2.19μC. How many ...
January 30, 2010 by corey

physics
If the momentum of one object changes in a system that is subject to no net external force, what else must happen? 1) Collisions with other objects will change its momentum back. 2) The momenta of the other objects in that system change in the same way. 3) The momenta of the ...
October 18, 2016 by Katelyn

Science
Two objects with charges of +1.0 and -1.0 are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
January 25, 2016 by April

Science
Two objects with charges of +1.0 and -1.0 are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
January 26, 2016 by April

Science
Two objects with charges of +1.0 c and -1.0 c are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
January 27, 2016 by Alana

physics
Two point charges 0.600 m apart experience a repulsive force of 0.400 N. The sum of the two charges equals 1.00*10^-5 C. Find the values of the two charges.
September 8, 2014 by Anonymous

Physics
objects with masses of 285 kg and a 585 kg are separated by 0.420 m. (a) Find the net gravitational force exerted by these objects on a 62.0 kg object placed midway between them.
May 3, 2011 by Dani

Physics
Air molecules create an upward force that impacts the free fall of objects on the surface of the Earth, differing form the way an object would fall in vacuum. Question: What kind of objects should be used for experimentation if we want to limit the impact on our experimental ...
September 16, 2012 by Joan

Coulomb's Law
Two objects with charges of +1.0 c and -1.0 c are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
January 27, 2016 by Kyla

Pre-Algebra
Solve the inequality for each solution. -Arnelle's checking account balance is -\$49.00. How much money must she deposit to bring her account to a possitive balance? PlZZZ Help me! =( She must deposit \$49.01 plus whatever the bank charges for writing a hot check plus any ...
November 28, 2006 by Amber :)

physics
Two tiny objects with equal charges of 59.0 µC are placed at two corners of a square with sides of 0.355 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small object with the same charge so that the electric field is ...
January 12, 2012 by Jay

physics
HELP HELP HELP Two tiny objects with equal charges of 83.0 µC are placed at two corners of a square with sides of 0.320 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small object with the same charge so that the ...
January 22, 2012 by HELP HELP HELP

physics
HELP HELP HELP Two tiny objects with equal charges of 83.0 µC are placed at two corners of a square with sides of 0.320 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small object with the same charge so that the ...
January 22, 2012 by HELP HELP HELP

Physics
Two equal charges are separated by 3.7 x 10^-10 m. The force between the charges has a magnitude of 2.37 x 10^-3 N. What is the magnitude of q on the charges? can some one explain to me how to do this step by step. Not that great at math hope you can help. Thanks
October 13, 2011 by aichan

Physics
Find the work that should be done to increase the distance between two point charges with the charges of 5nC and -10nC by 5cm. The initial distance between the charges is 15cm.
February 2, 2015 by Macy

aplied physics
two charges q1=-2uc and q2=3uc are placed at a distance of 6cm from each other. if rubber (Er=2.94) is placed between charges, find magnitude of electric force between charges.
June 10, 2015 by zeeshan

science-physics
All objects emit ______ radiation. Is it incident? The frequency of the radiation of most objects is a) below b) in the middle of c) greater than he frequency of the visibile light spectrum? I think its below as most objects can not be seen by visible light.
January 4, 2009 by samantha

physics
Two spherical objects are separated by a distance of 1.41 × 10^-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each ...
February 14, 2013 by shaun

physics
Two spherical objects are separated by a distance of 1.53 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each ...
July 28, 2014 by Lily

Physics
Hi, I solved this problem, but I want to make sure it is correct: 2 equal charges are separated by 3.7x10^-10m. The force between the charges has magnitude of 2.37x10^-3N.What is the magnitude of q on the charges? F= ( k x q x q)/ (r^2) F=2.37 c 10^3 N k= 9 x 10^9 r= 3.7 x 10...
June 20, 2011 by Anonymous

Physics
two objects move toward each other collide and separate. there was no net external force acting on the objects but some kinetic energy was lost. is momentum conserved ? what is the explanation ?
August 16, 2013 by kate

physics
If 2 objects of unequal masses are hung vertically over a frictionless pulley of negligible mass. determine the magnitude of the acceleration of the two objects and the tension in the light weight cord
March 23, 2015 by Ebun

Physics**
1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6 C and separated by a distance of 2 m. What is the electric force that these objects exert on one another? 2) Determine what happens to the electric ...
May 29, 2013 by Isis

Physics***
1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6 C and separated by a distance of 2 m. What is the electric force that these objects exert on one another? 2) Determine what happens to the electric ...
May 30, 2013 by Isis

physics
Two objects attract each other with a gravitational force of magnitude 0.99 10-8 N when separated by 19.1 cm. If the total mass of the objects is 5.01 kg, what is the mass of each?

Physics
In calculating the force of gravity between two objects, if the mass of one objects increased by 4 and the other by 2, how many times would the force of gravity increase? Ok well Im horrible at physics but the way I understood it was that you would take 4 times 2 then divide ...
May 4, 2008 by Lynn

Physics
If the gravitational force between objects of equal mass is 2.30x10^-8 N when the objects are 10.0m apart, what is the mass of each object?
October 15, 2013 by Miranda

Physics
Two objects with masses of 3.00 kg are connected by a light string that passes over a frictionless pulley.what is the distance each object will move in the first second of motion if both objects start from rest.
September 28, 2011 by Dee

Science
Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges are separated by 3.7 x 10-10 m. The force...
January 15, 2012 by Anonymous

physics
The three charges in the figure are at the vertices of an isosceles triangle. Calculate the work that needs to be expanded, in Joules, to bring the charges together (as shown.) Take q=5.7 μC. The length of base is b=2.30 m. The lengths of sides are s=5.80 m. The two ...
January 28, 2015 by Allie

Physics
Two particles having charges of +0.500nC and +8.00nC are seperated by a distance of 1.20m. (a) at what point along the line connecting the two charges is the net electric field due to the two charges equal to zero? (b) where would the net electric field be zero if one of the ...
July 8, 2009 by Sarah

Physics
We study the three point charges. They are held at the corners of an equilateral triangle with ℓ = 0.7 m. What is the electric potential energy of the system of three point charges? Use for the three charges q1 = +2Q, q2 = −3Q, q3 = +Q, where Q = 120 nC
January 31, 2016 by Anonymous

Physics
Two spherical objects are separated by a distance of 2.97 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each ...
February 13, 2016 by Naomi

physics
The magnitude of the charges is |q| = 7.8 µC, and the distance between them is d = 2.7 mm. Charge 2 is attracted to charge 1, because they are opposite charges. Charge 2 is repelled from charge 3, because they are like charges. Therefore, both 21 and 23 point to the left...
January 21, 2007 by Ann

Science
I would really appreciate it if someone checked my answers and told me if they were right. Thx. ~Ashley 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. A: The speeds of the objects. *B: The masses of the ...
January 28, 2015 by Xx_Ashley_xX

physics
Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object...
February 11, 2009 by Jordan

Physics
Why does a convex lens magnify objects and a concave lens shrink objects?
April 16, 2008 by Anonymous

physics
The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that the three charges form an equilateral triangle...
April 28, 2011 by aly

physics
An object travels 50 meters at 90° in 6 seconds and then travels 50 meters at 245° in 13 seconds. (a) What is the magnitude of the objects resultant displacement? (b) What is the direction of the objects resutlant displacement? (c) What is the magnitude of the objects ...
August 13, 2014 by Donny

physics
Two objects with masses 5.50 and 3.00 hang 0.500 above the floor from the ends of a cord 5.70 long passing over a frictionless pulley. Both objects start from rest. Find the maximum height reached by the 3.00 object
October 24, 2011 by okan

physics
Two objects with masses 4.90 and 2.10 hang 0.800 above the floor from the ends of a cord 7.20 long passing over a frictionless pulley. Both objects start from rest. Find the maximum height reached by the 2.10 object.
March 31, 2013 by Ben

Physics
Charges of -10.8 nC and -24.2 nC are separated by 0.813 m. What is the potential midway between the two charges?
January 31, 2012 by Ashley

Physics
Why do electric field lines begin on positive charges and end on negative charges?
February 16, 2012 by Ashley

two spherical objects are separated by a distance of 9x10^-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object ...
September 18, 2007 by Will

Physics
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths of the sides of the triangle are 4.7 cm. ...
January 21, 2012 by Junior

Physics
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths of the sides of the triangle are 4.7 cm. ...
January 21, 2012 by Junior

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

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