At what separation will two charges, each of magnitude 6.0fyc, exert a force of 1.4n on each other? a.0.48mb.2.0mc.5.1*10^6md.0.23me.40 m

This question involves the concept of Colomb's Law and electrostatic force.

The separation between charges will be "a. 0.48 m".

According to Colomb's Law, every charge exerts an electrostatic force on the other charge, which is directly proportional to the product of the magnitudes of both the charges and inversely proportional to the square of the distance between them.

where,

Therefore,

r = 0.48 m

Learn more about Colomb's Law here:

link

no. dot product   =0 when vecs at right angles

statement #3 on andre"s list is false.