College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A small metal ball with positive charge q and mass m is attached
to a very light string, as shown in (Figure 1). A larger metal ball
with negative charge - is securely held on a plastic rod
attached to the ceiling. The distance between the balls' centers is
r.
Write an expression for the magnitude of the force T that the string exerts on the ball.
Express your answer in terms of the variables q, m, Q, r, and constants kc and 9.
T=
- ΑΣΦ
kc Qq
2²
Symbols
- mg
-Q
m, +q
T
?
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Transcribed Image Text:A small metal ball with positive charge q and mass m is attached to a very light string, as shown in (Figure 1). A larger metal ball with negative charge - is securely held on a plastic rod attached to the ceiling. The distance between the balls' centers is r. Write an expression for the magnitude of the force T that the string exerts on the ball. Express your answer in terms of the variables q, m, Q, r, and constants kc and 9. T= - ΑΣΦ kc Qq 2² Symbols - mg -Q m, +q T ?
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