Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total charge of Q = -0.69 μC. a)Write an expression for the number of excess electrons N in the cup.  b)  How many excess electrons are in the cup?

Q: A point charge q1 = 8.0 nCis at the origin and another point charge q2 = 12.0 nC is on the x-axis at…

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Q: Several species of bacteria, including Geobacter metallireducens, have been shown to "eat"…

A: The electric field due to a point charge is given by, E=kqr2 where, E= electric field            q =…

Q: Consider the following. 0.500 mm 60.0 (a) Red blood cells often become charged and can be treated as…

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Q: Four identical metal spheres have charges of qA = -8.0 μC, qB=-2.0 μC, qC=+5.0 μC, and qD=+12.0 μC.…

A: Charging by conduction is the process in which electric charges or rather electrons are transferred…

Q: An acrylic rod has a net electric charge of +2.84 x 10-6 C. How many electrons have been removed…

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Q: A negative 12 nC charge is at the origin and a charge of 6 nC is located at 0.8 m and 1.1 m. A point…

A: Givenq1=-12 nC=12×10-9 Cq2=6 nC=6×10-9 Cr1=0.8 mr2=1.1 m

Q: If a neutral metal object has been charged by friction to a charge of one pC (1pC = 10-12 C), what…

A: Charge of one electron, e=-1.60×10-19C Charge of one proton, p=+1.60×10-19C 1 Pico Coulomb=10-12 C…

Q: Two electric charges of q1 = -3.2 nC and q2= 4 nC are separated by 6 cm. What is the Coulomb force…

A: Given that , q1 = -3.2 nc  , q2 = 4ncr = 6cm = 0.06 mF = kq1q2r2 = ?

Q: A raindrop with charge q = +12nC is suspended in the air a few cm above a very large plane of charge…

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Q: 8 - A positively charged conductor attracts a second object. Which of the following statements could…

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Q: A point charge qh=8.0 nC is at the origin and another point charge q2 = 12.0 nC is on the x-axis at…

A: The electric field at any point due to a charge is, E=kqr2r^ The unit vector of distance vector r…

Q: Three charged particles are placed at the corners of an equilateral triangle of side 1.20 mm (see…

A: Given that: Charge q1 = 7.4 μC Charge q2 = -7.8 μC Charge q3 = -5 μC Side of Equilateral triangle =…

Q: Three point charges are aligned along the x-axis as shown in Figure P15.57. Find the electric field…

A: Electric field is a field which is produced by charged objects. Electric field is a vector quantity…

Q: Charge q= 3.7 µC and q2 = 6.2 µC are placed as in the figure. If r = 4.8 cm, find the magnitude of…

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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: A metal rod contains 3x1020 protons and 5x1020 electrons. What is the net electric charge on this…

A: Number of protons (np) = 3×1020 Number of electrons (ne) = 5×1020 Protonic charge (ep) = 1.6×10-19 C…

Q: Q1. A charge of -3.0 uC is located at the origin; a charge of 4.0 µC is located at x =0.2 m, y=0; a…

A: Given data: Charge   q1= - 3 × 10-6 C x =0  y =0   q2 = 4 × 10-6 C    x= 0. 2 m    y=0 q3 = Q…

Q: Determine the quantity of charge on …a. … a plastic tube which has been rubbed with animal fur and…

A: Given:  a. … a plastic tube which has been rubbed with animal fur and gained 3.8 x 109 electrons.b.…

Q: The point charges are located at 1, 5, 8, and 14 cm along the x-axis as represented in the Figure.…

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Q: A plastic ball was originally neutral then 3.08 x 1010 electrons are removed. What is the final…

A: here,  number of electron removed(N)= 3.08 × 1010

Q: Adding a proton to a nucleus The nucleus of an atom is positively charged because it consists of…

A: Q = 50q r = 6 x 10-11 m

Q: A circular ring of radius 23.0 cm has a continuous charge distribution of -1.4 C/m. How many excess…

A: Radius of string, r=23 cm=0.23 mTotal length=2πr =0.46π m

Q: Two particles, each with charge 49.3 nc, are located on the y axis at y = 24.3 cm and y = -24.3 cm.…

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Q: 2.5 cm 1. Point charges are aligned as shown in the figure. What is the net force on each charge by…

A: Point charges are aligned as shown in the figure. What is the net force on each charge by the other…

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: Two charges lie in a line along the x axis. Charge 1 is q1= 0.75C and charge 2 is q2= 2.35 C. They…

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Q: Two identical metal spheres A and B are connected by a plastic rod. Both are initially neutral. 1.0…

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Q: A charge is spread uniformly over a thin, square metal plate 82.2 cm on a side. The electric field…

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Q: Two particles, each with charge 56.3 nC, are located on the y axis at y = 26.5 cm and y = −26.5 cm.…

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Q: 16. Charge one is 2 Coulombs and charge two is -4 Coulombs and the charge separation is 0.05 meters.…

A: In the given question We have to determine the force between two objects.

Q: 1. Each of two small non-conducting spheres is charged positively. the combined charge being 40 pC.…

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Q: QUESTION 1 A point charge q1 = 8.0 nC is at the origin and another point charge q2 = 12.0 nC is on…

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Q: he magnitude of the electric field due to this particle at a point 0.200 mm directly above it.…

A: Given:-  The particle of the charge q = -2.75 nC  The distance d = 0.2 m, this particle at a point…

Q: A physics lab instructor is working on a new demonstration. She attaches two identical copper balls…

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Q: 1. Electrostatic force is inversely proportional to the square of the distance between two charges.…

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Q: An object is found to have -3.6 x10-6 C of charge on it. How many electrons we added (positive…

A: Given data:  Charge on the object (Q) = -3.6×10-6 C Required: Number of electrons added or removed

Q: hree equal charges of +3C are arranged in a straight line in the sequence of Q1, Q2 and Q3. The…

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Q: A 2.0 10-4 kg oil drop is held in place by a downward electric field of 3.00 10² N/C. What is the…

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Q: 2 m P 1 m 92 + -2m -Im 1 m 2m Two point charges lie on the x-axis (see figure above) where q1 =…

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

A: Charges on the corners of the square, q, 2.5q , 7q , 2.5q side of the square, a   Determine : (a)…

Q: A 2.45 g air-inflated balloon is given an excess negative charge, q1 = -3.00 × 10-8 C, by rubbing it…

A: In order to make the balloon to stay afloat the coulomb's electrostatic force  must be equalt to…

Q: Two tiny, spherical water drops, with identical charges of -8.95 × 10-16 C, have a center-to-center…

A: Coulomb's law, F = (1/4πε0)×(q1q2/r2) Where, q1,q2 are charges and r is the distance between them.…

Q: A small metal bead, labeled A, has a charge of 26 nC . It is touched to metal bead B, initially…

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Q: Two metallic cubes of side a and 2a respectively are separated by a large distance D, (D>>a).…

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Q: Consider the following. 0.500 mm 60.0 (a) Red blood cells often become charged and can be treated as…

A: Part-a: given charge at A = +1.80 pC charge at B = + 7.10 pC charge at C = - 4.40 pC we have to…

Q: Say you have a positively charged rod A of length L = 112 m (m stands for meter). Charge density of…

A: Given:- a positively charged rod of length L= 112 m.             The charge density λA=3.0×10-2 Cm.…

Q: An electric field E =100,000ı^N/C causes the 5.0 g point charge in the figure (Figure 1)to hang at a…

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Q: The figure shows a conductor that has a total charge of Q= 13.9 nC. The conductor has a cavity that…

A: total charge (Q) = 13.9 nC charge on outer surface (Q') = 17 nC point charge inside the cavity = q…