Coulomb's Law (Electric Force) Video Lessons

Concept

# Problem: The magnitude of the electric force between two protons is 2.3 x 10-26 N. How far apart are they?a) 1b) 0.10 mc) 0.0057 m    d) 0.48 me) 0.022 mf) 3.1 m

###### FREE Expert Solution

Electric force:

$\overline{){\mathbf{F}}{\mathbf{=}}\frac{\mathbf{k}\mathbf{q}\mathbf{Q}}{{\mathbf{r}}^{\mathbf{2}}}}$

Solving for r:

$\overline{){\mathbf{r}}{\mathbf{=}}\sqrt{\frac{\mathbf{k}\mathbf{q}\mathbf{Q}}{\mathbf{F}}}}$

79% (474 ratings)
###### Problem Details

The magnitude of the electric force between two protons is 2.3 x 10-26 N. How far apart are they?

a) 1

b) 0.10 m

c) 0.0057 m

d) 0.48 m

e) 0.022 m

f) 3.1 m