8. The electric field at a distance of 1.0 m from a charged sphere is 100 N/C. At what distance from the sphere will the electric field be 50 N/C? a) 1.1 m. 1.4 m b) 9. Two metal spheres that are initially uncharged are mounted on insulating stands, as shown. A negatively charged rubber rod is brought close to, but does not make contact with, sphere 1. Sphere 2 is then brought close to 1 on the side opposite to the rubber rod. Sphere 2 is allowed to touch 1 and then is removed some distance away. The rubber rod is then moved far away from 1 and 2 What are the final charges on the spheres? Sphere 2 Negative Positive Sphere 1 a) Negative b) Negative c) Positive d) Positive c) 2.0 m. d) 4.0 m. Negative Positive 1

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Chapter1: Units, Trigonometry. And Vectors
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8. The electric field at a distance of 1.0 m from a charged sphere is 100 N/C. At what distance from
the sphere will the electric field be 50 N/C?
a) 1.1 m.
1.4 m
b)
9. Two metal spheres that are initially uncharged are
mounted on insulating stands, as shown. A
negatively charged rubber rod is brought close to,
but does not make contact with, sphere 1. Sphere 2
is then brought close to 1 on the side opposite to
the rubber rod. Sphere 2 is allowed to touch 1 and
then is removed some distance away. The rubber
rod is then moved far away from 1 and 2 What are
the final charges on the spheres?
Sphere 2
Negative
Positive
a)
b)
Sphere 1
Negative
Negative
Positive
c) 2.0 m.
d) 4.0 m.
c)
d) Positive
Negative
Positive
2
오
Transcribed Image Text:8. The electric field at a distance of 1.0 m from a charged sphere is 100 N/C. At what distance from the sphere will the electric field be 50 N/C? a) 1.1 m. 1.4 m b) 9. Two metal spheres that are initially uncharged are mounted on insulating stands, as shown. A negatively charged rubber rod is brought close to, but does not make contact with, sphere 1. Sphere 2 is then brought close to 1 on the side opposite to the rubber rod. Sphere 2 is allowed to touch 1 and then is removed some distance away. The rubber rod is then moved far away from 1 and 2 What are the final charges on the spheres? Sphere 2 Negative Positive a) b) Sphere 1 Negative Negative Positive c) 2.0 m. d) 4.0 m. c) d) Positive Negative Positive 2 오
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