# Electric Charges, Electric Forces and Electric Fields

## Homework Statement

An object with a net charge of 24 x 10^-6 Coulombs is placed in a uniform electric field of 610 N/C, directed vertically. What is the mass of this object if it floats in this electric field?

## Homework Equations

Felectric = kC (q*q/r^2)
Electric Field= kC (q/r^2)
E= Felectric/q
F=ma

## The Attempt at a Solution

I know I need to use F=ma, but I do not know the acceleration. I don't know how to solve this

Related Introductory Physics Homework Help News on Phys.org
Which formula can be used to find the strength of the electric force due to the field?

Electric field = Electric force/ q (charge of object)

(Electric field equals the electric force divided by the charge of the object)

Once the electric force is calculated, it must be equal to the gravitational force since the charge is floating. What formula is used to calculate the gravitational force acting on a mass?

F= mg

Force of gravity = mass x 9.8

Bingo

Wow thanks! haha I may have some more questions soon too :)