Physics-Please check and I need help

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Please help set this up-

A person goes into the electric field and has an object with a charge value of 4.2E-6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the object they have.
What is electric field intensity?
What is electric potential at that point?
I'm totally confused-Would I start with f=kq1/r^2 and I have no idea for the second question-please direct me to at least the correct formula Thank you

  • Physics-Please check and I need help -

    E=k*4.2E-6/10^2

    assuming it was a point charge causing the field.

    V=k*4.2E-6/10

  • Physics-Please check and I need help -

    Thank you-I really appreciate this-I can figure it out finally-thanks again

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