Answer:

Explanation:
As we know that work done by electric force is given as

so here we know that charge is moving from

to another position
so we will have




It's used to measure the mass or weight of an object
Explanation:
Below is an attachment containing the solution.
D. Destructive interference. An easy way to think about it is the waves are opposite each other, so they essentially cancel each other out, or make an effort to.