Since the 2 points form a triangle with hypothenuse of √5 [ √(1²+2²)],
I guess apply the formula :

with r as √5 and q as 1x10^-6
not sure about this answer tho
draw a diagram first to understand better
First shell hold up to 2 electrons.
Answer:
Force of
Kgm/s^2 must be applied to the piston to raise oil to a height of 6.0 m
Explanation:
As we know,
Pressure is the force per unit area
Or 
Force 
Pressure is the product of density, gravitational constant and height

Force
Kgm/s^2