Explanation:
Relation between work and change in kinetic energy is as follows.

Also, 
=
J
=
J
Let us assume that electric force on the electron has a magnitude F. The electron moves at a distance of 0.3 m opposite to the direction of the force so that work done is as follows.
w = -Fd

F =
Therefore, relation between electric field and force is as follows.
E = 
= 
=
C
Thus, we can conclude that magnitude of the electric field that will stop these electrons in a distance of 0.3 m is
C.
Answer:
is B because 35 times 2.9 equals 101.5 and if you round it is 102
Greater energy makes fast-moving water a greater force of erosion.
The reaper watches. Satan watches. We all watch. As we fade. Into oblivion.