Electric Force Acting on Alpha Particle and Gold Nucleus

[thildebr]

Homework Statement

an alpha particle (charge=+2.0e) is sent at high speed toward a gold nuclues Charge= +79e. What is the electrical force acting on the alpha particle when it is 2.0 times 10^ -14m away from the gold nucleus

Homework Equations

The Attempt at a Solution

its 91 N but i need the steps of how i got the answer

 

[ranger]

Ever heard of Coulomb's law?

 

[cristo]

Homework Statement

an alpha particle (charge=+2.0e) is sent at high speed toward a gold nuclues Charge= +79e. What is the electrical force acting on the alpha particle when it is 2.0 times 10^ -14m away from the gold nucleus

Homework Equations

The Attempt at a Solution

its 91 N but i need the steps of how i got the answer

Welcome to PF, thildebr. Please note that for homework questions, we require you to show your working before we can help you. Also, in future, please make the title relevant to the question in the thread-- this will enable us to help you quicker!

As for the question, follow ranger's hint.