B.Warmer air molecules move faster and get farther apart. As they get farther apart, they become less dense and rise.
Answer :
The answer is clearly C
Explanation:
Because the only way currents move are to the side
Answer:
Distance in mm will be 0.3718 mm
Explanation:
We have given charge surface charge density 
We know that electric field due to surface charge density is given by

We have given potential difference V = 105 volt
We know that potential difference is given by 
So 

∆x (displacement) = v - u
where, v is the final position and u is the initial position.
Given, the final position of the object is 0 m and the initial position is 5 m.
∆x (displacement) = v - u
= 0 m - 5 m
= -5 m
Therefore, <u>C: -5m</u> is the correct answer.