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DedPeter [7]
2 years ago
11

.

title="25 {?}^{?} \times \frac{?}{?} " alt="25 {?}^{?} \times \frac{?}{?} " align="absmiddle" class="latex-formula">
​
Physics
2 answers:
blondinia [14]2 years ago
7 0
What are u asking exactly ?
mr_godi [17]2 years ago
5 0

Answer:

what is your exact question.

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A small glass bead has been charged to +20 nC. A small metal ball bearing 1.0 cm above the bead feels a 0.018 N downward electri
Alla [95]

Answer:

q=1\times10^{-8}C

Explanation:

Let the charge on the ball bearing is q.

charge on glass bead, Q = 20 nC = 20 x 10^-9 C

Force between them, F = 0.018 N

Distance between them, d = 1 cm = 0.01 m

By use of Coulomb's law in electrostatics

F=\frac{KQq}{d^{2}}

By substituting the values

0.018=\frac{9\times10^{9}\times20\times10^{-9}q}{0.01^{2}}

q=1\times10^{-8}C

Thus, the charge on the ball bearing is q=1\times10^{-8}C

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2 years ago
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3 years ago
Make a
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2 years ago
Which benefit outweighs the risks in the technological design of headphones?
Dmitriy789 [7]

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