If a point charge of -30 µc experiences an electrostatic upward force of 27 mn at a certain location in the laboratory, what are the magnitude and direction of the electric field at that location?

i'm pretty sure it is letter c.) car

i believe the answer is three water molecules

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.