Homework Answers
Field of ball A being positively charged , is away from it , that towards B. Field of ball B, being negatively charged, is towards itself that is towards B. As field due to both balls is towards B, net field is sum of magnitude of two fields and towards B.
Field of Ball A = kqa /1^2 = 8.988×10^9
Field of ball B = k qb /1^2 = 8.988×10^9*2
Net field is sum of the two = 2.7×10^10
Option C is correct.
A small pith ball has a charge of 0.001 C. What is the electric field 0.3...
A small pith ball has a charge of 0.001 C. What is the electric field 0.3 m from the ball? that k-8.988x10A9 N m 2/CA2 Remember 3.0x107 N/C a. 1.0x1048 N/C b. 0.1 N/C C. It depends on the charge of the object placed in the field. d.
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Part One. (Four points apiece) 1. One very small uniformly charged plastic ball is located directly above another such charged ball in a test tube as shown in the figure. The balls are in equilibrium a distance d apart. If the charge on each ball is doubled, the distance between the balls in the test tube would become a. v2d. b. 2d. c. 4d. d. 8d. e. None of these. 2. A point charge Q is located a short distance...
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I need help with all these please! Thanks!
1. Two identical metal balls are suspended by insulating threads. Both balls have the same net charge. In this problem, do not assume the balls are point charges Ball 2 a. Draw a separate free-body diagram for each ball. Label the forces to indicate: . the object exerting the force, the object on which the force is exerted, • the type of force (gravitational, normal etc.), and • whether the force is...
Home work foy ch 23 1. A cork ball that is covered with conducting paint and...
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Two small identical balls A and B are held a distance r apart on a frictionless...
Two small identical balls A and B are held a distance r apart on a frictionless surface, with i very large compared with the size of the balls. Ball A has a net charge of2q; ball B has a net charge of q. The balls are released at the same instant and begin to move together. Which characteristics describe the magnitudes of their accelerations over time? point Oequal and increasing Ounequal and increasing Oequal and decreasing Oequal and constant Which...
8) A small plastic ball has a charge of -5.0 nC. It is placed next to...
8) A small plastic ball has a charge of -5.0 nC. It is placed next to similar object with a -12 nC charge. 5.0 "С -12 nC 1. a) Will the balls attract, or repel? Theywillepe ble bey ore bok eav 2. b) A force of attraction/repulsion (answer above) with a magnitude of 8.2X 104N is measured. How far apart are the balls?
1. A total charge of 3.35 C is distributed on two metal spheres. When the spheres...
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A 20 g metal ball with a charge of +2 C is moving straight towards a fixed insulator with a charge of +3 C. If the metal ball has a velocity of 5 m/s when it is very far away from the other charge, how close will it get to the second charge before it stops moving? (Use conservation of energy)
An electric field can be created by a single charge or a distribution of charges. The...
An electric field can be created by a single charge or a distribution of charges. The electric field a distance from a point charge has magnitude E = k|q'|/r^2. The electric field points away from positive charges and toward negative charges. A distribution of charges creates an electric field that can be found by taking the vector sum of the fields created by individual point charges. Note that if a charge is placed in an electric field created by q',...
A small pith ball has a charge of 0.001 C. What is the electric field 0.3 m from the ball? that k-8.988x10A9 N m 2/CA2 Remember 3.0x107 N/C a. 1.0x1048 N/C b. 0.1 N/C C. It depends on the charge of the object placed in the field. d.
Part One. (Four points apiece) 1. One very small uniformly charged plastic ball is located directly above another such charged ball in a test tube as shown in the figure. The balls are in equilibrium a distance d apart. If the charge on each ball is doubled, the distance between the balls in the test tube would become a. v2d. b. 2d. c. 4d. d. 8d. e. None of these. 2. A point charge Q is located a short distance...
I need help with all these please! Thanks!
1. Two identical metal balls are suspended by insulating threads. Both balls have the same net charge. In this problem, do not assume the balls are point charges Ball 2 a. Draw a separate free-body diagram for each ball. Label the forces to indicate: . the object exerting the force, the object on which the force is exerted, • the type of force (gravitational, normal etc.), and • whether the force is...
Home work foy ch 23 1. A cork ball that is covered with conducting paint and charged to 4 × 10-10C is touched by an identical but un- charged cork ball; the balls then separate. This second cork ball is then touched by a third uncharged cork ball, and they separate. What is the charge of each ball at the end. and how many excess electrons does each ball have? 2. An electron and a proton attract each other with...
Two small identical balls A and B are held a distance r apart on a frictionless surface, with i very large compared with the size of the balls. Ball A has a net charge of2q; ball B has a net charge of q. The balls are released at the same instant and begin to move together. Which characteristics describe the magnitudes of their accelerations over time? point Oequal and increasing Ounequal and increasing Oequal and decreasing Oequal and constant Which...
8) A small plastic ball has a charge of -5.0 nC. It is placed next to similar object with a -12 nC charge. 5.0 "С -12 nC 1. a) Will the balls attract, or repel? Theywillepe ble bey ore bok eav 2. b) A force of attraction/repulsion (answer above) with a magnitude of 8.2X 104N is measured. How far apart are the balls?
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