Explanation:
It is given that,
An electron is released from rest in a weak electric field of, 
Vertical distance covered, 
We need to find the speed of the electron. Let its speed is v. Using third equation of motion as :

.............(1)
Electric force is
and force of gravity is
. As both forces are acting in downward direction. So, total force is:



Acceleration of the electron, 


Put the value of a in equation (1) as :


v = 0.010 m/s
So, the speed of the electron is 0.010 m/s. Hence, this is the required solution.
Sewage. If thats not it, then I need to see your choices. :)
I would feel warm because putting cold and hot together is gonna be warm because with the cold it is cooling down the hot to make warm
Friction? For example, like when a car's tires skid on rough concrete.