Please match word and definition Question 10 options:

flow of an electrical charge in a circuit

Prevents electrons from moving

provides a path for electrons to flow

electrons and electric current move easily

1.
electric current

2.
insulator

3.
electric circuit

4.
conductor

__4__  

electrons and electric current move easily  

__3__  

provides a path for electrons to flow  

__2__  

Prevents electrons from moving  

__1__  

flow of an electrical charge in a circuit

Explanation:

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.