Coulomb's Law (Electric Force) Video Lessons

Concept

# Problem: The "size" of the atom in Rutherford's model is about 1.0 ✕ 10−10 m.(a) Determine the attractive electrostatic force between an electron and a proton separated by this distance. ________ N(b) Determine (in eV) the electrostatic potential energy of the atom. (Assume the electron and proton are again separated by the distance stated above.) __________ eV

###### FREE Expert Solution

The attractive electrostatic force between an electron and a proton is:

$\overline{){\mathbf{F}}{\mathbf{=}}{\mathbit{k}}\frac{\mathbf{e}\mathbf{×}\mathbf{e}}{{\mathbf{d}}^{\mathbf{2}}}}$

Electrostatic potential:

$\overline{){\mathbf{V}}{\mathbf{=}}{\mathbf{k}}\frac{\mathbf{e}}{\mathbf{d}}}$

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###### Problem Details

The "size" of the atom in Rutherford's model is about 1.0 ✕ 10−10 m.

(a) Determine the attractive electrostatic force between an electron and a proton separated by this distance. ________ N

(b) Determine (in eV) the electrostatic potential energy of the atom. (Assume the electron and proton are again separated by the distance stated above.) __________ eV