Question

What is the force, in terms of Coulomb's constant, between two electrical charges of `16 C` and `-42 C` that are `7 m` apart?

Answer 1

`F=-106,64*10^9N`

Explanation:

`"Force between two charges is given by Coulomb's law "`
`F=k*(q_1*q_2)/d^2`
`F=9*10^9*(16*(-42))/7^2`
`F=-9*10^9*16*cancel(42)/(cancel(7)*7)`
`F=-(9*16*6*10^9)/7`
`F=-106,64*10^9N`