Exercise $23\mathrm{.}5-$ Enhanced $-$ with Solution

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A small metal sphere, carrying a net charge of $q_1=-2\mathrm{.}70C,$ is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of $q_2=-7\mathrm{.}20C$ and mass $1\mathrm{.}40g,$ is projected toward $q_1.$ When the two spheres are $0\mathrm{.}800m$ apart, $q_2$ is moving toward $q_1$ with speed $2200\frac{m}{s}($Figure $1).$ Assume that the two spheres can be treated as point charges You can

Part A

A small metal sphere, carrying a net charge of $q_1=-2\mathrm{.}70C,$ is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of $q_2=-7\mathrm{.}20C$ and mass $1\mathrm{.}40g,$ is projected toward $q_1.$ When the two spheres are $0\mathrm{.}800m$ apart, $q_2$ is moving toward $q_1$ with speed $22\mathrm{.}0\frac{m}{s}($Figure $1).$ Assume that the two spheres can be treated as point charges. You can ignore the force of gravity.

You may want to review $($Page$).$

For related problem$-$solving tips and strategies, you may want to view a Video Tutor Solution of Conservation of energy with electric forces.

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Part A

A small metal sphere, carrying a net charge of $q_1=-2\mathrm{.}70C.$ is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of $q_2=-7\mathrm{.}20C$ and mass $1\mathrm{.}40g,$ is projected toward $q_1.$ When the two spheres are $0\mathrm{.}800m$ apart, $q_2$ is moving toward $q_1$ with speed $22\mathrm{.}0\frac{m}{s}($Figure $1).$ Assume that the two spheres can be treated as point charges. You can ignore the force of gravity.

You may want to review $($Page$)$

For related problem$-$solving tips and strategies, you may want to view a Video Tutor Solution of Conservation of energy with electric forces

Figure

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