Hi,(adsbygoogle = window.adsbygoogle || []).push({});

There are 3 Protons (P) that form a triangle.

distance PA-PB -->15mm

distance PB-PC -->20mm

distance PA-PC --> unknown

I have to calculate the last distance and the forces between the protons by using coulomb´s laws.

I tried to calculate the force between AB and BC:

F1=1.02 E -24

F2=5.76 E -25

Now I don´t know what to do next? Can I use the a²+b²=c² for either the Fore or the distance?

Thanks

jawo3

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Force between Protons

**Physics Forums | Science Articles, Homework Help, Discussion**