11. (II) Particles of charge +65, +48, and -95 μC are placed in a line (Fig. 16-52). The center one is 0.35 m from each of the others. Calculate the net force on each charge due to the other two. +65 μC +48 μC -95 μµC 0.35 m 0.35 m FIGURE 16-52 Problem 11.

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## Example Problem on Coulomb's Law

**Problem Statement:**

**(II)** Particles of charge \(+65 \, \mu\text{C}\), \(+48 \, \mu\text{C}\), and \(-95 \, \mu\text{C}\) are placed in a line (Fig. 16–52). The center one is \(0.35 \, \text{m}\) from each of the others. Calculate the net force on each charge due to the other two.

### Diagram Description:

In **FIGURE 16-52 Problem 11**, three charged particles are aligned in a straight line. Here is the layout:
- A particle with a charge of \(+65 \, \mu\text{C}\) is placed on the left.
- A particle with a charge of \(+48 \, \mu\text{C}\) is placed in the middle.
- A particle with a charge of \(-95 \, \mu\text{C}\) is placed on the right.

The distance between \(+65 \, \mu\text{C}\) and \(+48 \, \mu\text{C}\) is \(0.35 \, \text{m}\). Similarly, the distance between \(+48 \, \mu\text{C}\) and \(-95 \, \mu\text{C}\) is also \(0.35 \, \text{m}\). The charges and distances are clearly depicted and labeled in the figure:

### Diagram:

```
+65 µC       +48 µC       -95 µC
   ● ---------●--------- ●
   |         0.35 m        |         0.35 m          |
```

To understand the forces, recall Coulomb’s Law:
\[ F = k_e \frac{|q_1 q_2|}{r^2} \]
where \( k_e = 8.99 \times 10^9 \, \text{N} \cdot \text{m}^2 / \text{C}^2 \), \( q_1 \) and \( q_2 \) are the magnitudes of the charges, and \( r \) is the distance between the charges. Apply this law calculating the forces between each pair of charges and then find the vector sum to get the net force on
Transcribed Image Text:## Example Problem on Coulomb's Law **Problem Statement:** **(II)** Particles of charge \(+65 \, \mu\text{C}\), \(+48 \, \mu\text{C}\), and \(-95 \, \mu\text{C}\) are placed in a line (Fig. 16–52). The center one is \(0.35 \, \text{m}\) from each of the others. Calculate the net force on each charge due to the other two. ### Diagram Description: In **FIGURE 16-52 Problem 11**, three charged particles are aligned in a straight line. Here is the layout: - A particle with a charge of \(+65 \, \mu\text{C}\) is placed on the left. - A particle with a charge of \(+48 \, \mu\text{C}\) is placed in the middle. - A particle with a charge of \(-95 \, \mu\text{C}\) is placed on the right. The distance between \(+65 \, \mu\text{C}\) and \(+48 \, \mu\text{C}\) is \(0.35 \, \text{m}\). Similarly, the distance between \(+48 \, \mu\text{C}\) and \(-95 \, \mu\text{C}\) is also \(0.35 \, \text{m}\). The charges and distances are clearly depicted and labeled in the figure: ### Diagram: ``` +65 µC +48 µC -95 µC ● ---------●--------- ● | 0.35 m | 0.35 m | ``` To understand the forces, recall Coulomb’s Law: \[ F = k_e \frac{|q_1 q_2|}{r^2} \] where \( k_e = 8.99 \times 10^9 \, \text{N} \cdot \text{m}^2 / \text{C}^2 \), \( q_1 \) and \( q_2 \) are the magnitudes of the charges, and \( r \) is the distance between the charges. Apply this law calculating the forces between each pair of charges and then find the vector sum to get the net force on
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