Electric fields

A charged cloud system produces an electric field in the air near Earth”s surface. A particle of charge – 2.0 x 10-9 C is acted on by a downward electrostatic force of 3.0 x 10-6 N when placed in this field. (a) What is the magnitude of the electric field? What are the (b) magnitude and (c) direction of the electrostatic force  width= on the proton placed in this field? (d) What is the magnitude of the gravitational force  width= on the proton? (e) What is the ratio Fel /Fg in this case?

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