A Very Small $4.8 - \mathrm { g }$ Particle Carrying a Charge Of

question 71

Short Answer

A very small $4.8 - \mathrm { g }$ particle carrying a charge of $+ 9.9 \mu \mathrm { C }$ is fired with an initial speed of $8.0 \mathrm {~m} / \mathrm { s }$ directly toward a second small $7.8 - \mathrm { g }$ particle carrying a charge of $+ 5.2 \mu \mathrm { C }$ . The second particle is held fixed throughout this process. If these particles are initially very far apart, what is the closest they get to each other? $\left( k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 } \right)$

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