Answer:
Ans is (B) driving a rock from a building
Answer:
Hey
Your answer would be:
stationary objects within the field will move when realesed.
The reason why is because fields store potential energy as you know. when something is stationary it has potential, but when it is released that potential energy turns into kinetic energy.
this made me think of a funny joke:
A man was about to jump off of the Empire State Building when a physicist from below yield, Wait don't! you have so much potential!
lol always cracks me up.
Answer:
Explanation:
Given
Work required 
Work done to eject the sodium ion from interior of the cell is given by the product of charge and Potential difference between inner and outer surface of the cell.
Charge on sodium ion 
Answer:
Potato is not a root whereas the rest of the four items are forms of root.
Potato is a stem.
So, option B is the odd one out
