Two identical brass balls mounted on wooden posts initially have different amounts of charge: one −7 μC and the other −21 μC. The balls are allowed to touch and then are separated again. What is the final charge on each ball?

Q: Two metal spheres, each of radius 3.2 cm, have a center-to-center separation of 3.0 m. Sphere 1 has…

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Q: Four identical metallic spheres with charges of +9.0 µC, +1.0 µC, −2.6 µC, and −7.6 µC are placed on…

A: Given data, Charges, Q1=9 μCQ2=1 μCQ3=-2.6 μCQ4=-7.6 μC

Q: In the future people will only enjoy one sport: Electrodisc. In this sport you gain points when you…

A: Initial charge on disk A = -8 μC Initial charge on disk B = -2 μC Initial charge on disk C = 5 μC…

Q: Two metal spheres, each of radius 4.2 cm, have a center-to-center separation of 1.6 m. Sphere 1 has…

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Q: You have a lightweight spring whose unstretched length is 4.0 cm. First, you attach one end of the…

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Q: A 4 × 2 mm flat carpet acquires a uniformly distributed charge of −10 μC after you walk across it…

A: Dimensions of carpet = Charge on carpet is Mass of dust particle is Permittivity of free space is

Q: An empty metal paint can is placed on a marble table, the lid is removed , and both parts are…

A: Given data: for the first case: The charge of the penny is +5 nC. The nickel and dime are…

Q: You want to know the size of charge that a small ball acquires by being touched with a charged…

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Q: Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of + 5q. Sphere B…

A: Let charge on sphere A , B  and C are Qa  , Qb and  Qc respectively . Initially  Qa = + 5 q Qb = - q…

Q: The figure below shows four particles, each with a positive charge, at the corners of a square. The…

A: We know that like charges repel and unlike charges attract. Consider the charge. Due to the other…

Q: Two 0.90 g spheres are charged equally and placed 2.1 cm apart. When released, they begin to…

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Q: For what value of Q will the masses be held in place?

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Q: Electrodisc, the sport of the future, has players skating across the field on hover shoes pushing…

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Q: Iwo metal spheres, each of radius 4.4 cm, have a center-to-center separation of 1.9 m. Sphere 1 has…

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Q: Two identical 43 mg dust particles very far apart (PEE ≈ 0) are moving directly toward each other at…

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Q: Four identical metallic spheres with charges of +1.4 μC, +1.8 μC, -5.8 μC, and -5.2 μC are placed on…

A: We know from concept of distribution of charge When two charged objects get into contact, charge is…

Q: a) Suppose you have 200 grams of copper. If there are 65.5 grams in each mole of copper, how many…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A 2.00 g air-inflated balloon is given an excess negative charge, q1 = -3.00 × 10-8 C, by rubbing it…

A: Mass of Inflated balloon: m = 2.00g = 2.00 x 10-3 kg Charge on inflated balloon: q1 = -3.00 x 10-8 C…

Q: You hold a ruler that has a charge on its tip 6 cm above a small piece of tissue paper to see if it…

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Q: Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total…

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Q: You have three identical metal spheres marked as X, Y, and Z, each mounted on an insulating stand.…

A: charge on sphere  X = 0 ( NEUTRAL ) CHARGE ON sphere Y = +q charge on sphere z = + 4 q

Q: You have a lightweight spring whose unstretched length is 4.0 cm. First, you attach one end of the…

A: Given data :  Spring unstretched length L = 4 cm  Mass of object hanging on end of spring m = 1.6 g…

Q: Two identical conducting spheres A and B are initially electrically neutral. Sphere A is given a…

A: In this problem, we are dealing with conducting spheres and electric charges.When two conductors…

Q: In the future people will only enjoy one sport: Electrodisc. In this sport you gain points when you…

A: qA = −8.0 µC,  qB = −2.0 µC,  qC = +5.0 µC, and  qD = +12.0 µC.

Q: An electrically neutral penny, of mass 3.11 g, contains an equal number of positive and negative…

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Q: Two identical beads each have a mass m and charge q. When placed in a hemispherical bowl of radius R…

A: For the charges/masses to balance at the position,the force of electric repulsion along the tangent…

Q: Four identical metallic spheres with charges of +8.6 μC, +3.4 μC, -7.4 μC, and -2.8 μC are placed on…

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Q: A 60-g ball of copper has a net charge of 3 μC. What fraction of the copper's electrons have been…

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Q: A 46.9 g ball of copper has a net charge of 2.9 uC. What fraction of the coppers electrons have been…

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Q: Two balloons (m = 0.022 kg) are separated by a distance of d = 12 m. They are released from rest and…

A: m=0.022 kgd=12 ma=1.1m/s2

Q: Determine the surface charge density on the negative plate.

A: Before introducing the negative plate. Analyze the following figure. Applying Newton’s law in the…

Q: Two metal spheres, each of radius 2.6 cm, have a center-to-center separation of 2.8 m. Sphere 1 has…

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Q: How many electrons must be removed from a neutral object to leave a net charge of Q2 = 2.1 μC?

A: Given Data, charge Q2 = 2.1 micro Coulomb

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.