Coulomb's law: two electrons are 20.0 mm apart at closest approach. what is the magnitude of the maximum electric force that they exert on each other? (e = 1.60 × 10-19 c, k = 1/4πε0 = 9.0 109 n ∙ m2/c2)

The maximum electric force is

Explanation:

Given that,

Distance = 20.0 mm

We need to calculate the maximum electric force that they exert on each other

Using formula of electric force

Where, q = charge

r = radius

Put the value into the formula

Hence, The maximum electric force is

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

unbalanced force

explanation: